Since 40% of population is 3,064,486,185
Then to find 100% we will use the cross multiplication
[tex]\begin{gathered} \frac{40}{3064486185}=\frac{100}{x} \\ 40\times x=100\times3064486185 \end{gathered}[/tex]Divide both sides by 40 to find x
[tex]\begin{gathered} \frac{40x}{40}=\frac{306448618500}{40} \\ x=7661215463 \end{gathered}[/tex]The world population is 7,661,215,463
