SOLUTION: If you could help i would really appreciate it!!! Find the number of terms in the geometric series with Sn=218.6765, t1=4, and r=1.05 Thank you so very much!!

Algebra ->  Sequences-and-series -> SOLUTION: If you could help i would really appreciate it!!! Find the number of terms in the geometric series with Sn=218.6765, t1=4, and r=1.05 Thank you so very much!!      Log On


   

Question 748728: If you could help i would really appreciate it!!!
Find the number of terms in the geometric series with
Sn=218.6765, t1=4, and r=1.05
Thank you so very much!!
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
S%5Bn%5D+=+%28t%5B1%5D%29%281+-+r%5En%29%2F%281+-+r%29
218.6765+ = 4%281+-+1.05%5En%29%2F%281+-+1.05%29
++1.05%5En+ = 1+-+218.6765%281+-+1.05%29%2F4+
1.05%5En+ = 3.73345625
n+ = highlight%2827%29
There are 27 terms