Question

Internet live stats.com reported in December 2017 around 40% of the world population has an internet connection today. If there are 3,064,486,185 users, what is the world population? Round to the nearest whole number

Answer 1

Since 40% of population is 3,064,486,185

Then to find 100% we will use the cross multiplication

$\begin{gathered} \frac{40}{3064486185}=\frac{100}{x} \\ 40\times x=100\times3064486185 \end{gathered}$

Divide both sides by 40 to find x

$\begin{gathered} \frac{40x}{40}=\frac{306448618500}{40} \\ x=7661215463 \end{gathered}$

The world population is 7,661,215,463