$2S{O}_2+O_2=2S{O}_3$

$S{O}_3+H_{2}S{O}_4=H_2{S}_2{O}_7$

$H_2{S}_2{O}_7+H_{2}O=2H_{2}S{O}_4$

With the folliwing reactions and knowing we get $100$kg of $2$H$2$SO$4$ at the end, determine the composition $\%$ of all of the $6$ different components on this $3$ reactions.