# What is the constant ratio "r" mean in a geometric sequence formula?

Nov 25, 2014

It means that the next term can always be obtained by multiplying a current term by $r$.

${a}_{1} = a$

by multiplying by $r$,

${a}_{2} = a r$

by multiplying by $r$,

${a}_{3} = a {r}^{2}$
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I hope that this was helpful.