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8th term of a geometric sequence whose common ratio is 2/3 whose first term is 7?

 Dec 17, 2015
 #1
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This is acutally quite simple

Geometric sequence:

7  _  _  _  _  _  _  _

7*(2/3) = 4.67

7  4.67 _  _  _  _  _  _

4.67*(2/3) = 3.1

7 4.67 3.1 _  _  _  _  _ 

3.1*(2/3) = 2.067

7 4.67 3.1 2.067 _ _ _ _

2.067*(2/3) = 1.38

7 4.67 3.1 2.067 1.38 _  _  _

Etc.

Final anwser is:

0.61234567901234568886669995 or

496/1215

 Dec 17, 2015

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