SOLUTION: What is the sum of a 6-term geometric series if the first term is 19 and the last term is 319,333?

Question 773412: What is the sum of a 6-term geometric series if the first term is 19 and the last term is 319,333?
Found 2 solutions by MathTherapy, KMST:
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

What is the sum of a 6-term geometric series if the first term is 19 and the last term is 319,333?

Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
In a geometric sequence the ratio of consecutive terms equals a number , called the common ratio.
The nth term of a geometric sequence is given by
where
is the first term, and
is the common ratio
The sum of the first n terms is

In your case,

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