Question 157622
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Note: E+11 is exponential notation for 10^11 (that's eleven zeros)
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Let's take it one step at a time:
how would i find the surface area to compare?
SA=4(3.14159)r^2
The above requires r (radius) but the information in the problem provided diameters.  But, we know that:
radius = d/2 
88,846 miles sphere: radius = 88846/2 = 44423 miles
7,926 miles sphere: radius = 7926/2 = 3963 miles
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SA of 88,846 miles sphere:
4(3.14159)(44423)^2
= 12.56636(44423)^2
= 12.56636(1973402929)
= 24798491630.86844 square miles
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SA of 7,926 miles sphere:
4(3.14159)(3963)^2
= 12.56636(3963)^2
= 12.56636(15705369)
= 197359320.78684 square miles
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Ratio of "SA of 88,846 miles sphere" to "SA of 7,926 miles sphere" then is
24798491630.86844:197359320.78684
= 24798491630.86844/197359320.78684
= 125.651 (this is the ratio)
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Volume of 88,846 miles sphere:
(4/3)(pi)(44423)^3
= (4.18879)(44423)^3
= (4.18879)(87664478314967)
= 367208090120950.61993 cubic miles
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Volume of 7,926 miles sphere:
(4/3)(pi)(3963)^3
= (4.18879)(3963)^3
= (4.18879)(62240377347)
= 260711870227.34013 cubic miles
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Ratio of volumes:
367208090120950.61993:260711870227.34013
367208090120950.61993/260711870227.34013
1408.482