What is the sum of the series $4 + \dfrac{4}{3} + \dfrac{4}{9} + \ldots$ up to infinity?

Question

Accepted Answer

$6$

Answer

$3$

Answer

$\dfrac{9}{2}$

Answer

$\dfrac{4}{3}$

What is the sum of the series 4+43+49+…4 + \dfrac{4}{3} + \dfrac{4}{9} + \ldots4+34​+94​+… up to infinity?