50000 is 0.04% of 128210000.
Step 1: Translate the words into an equation.
50000 | is | what percent | of | 128210000 |
50000 | = | x | $ \cdot $ | 128210000 |
Step 2: Solve for $ x $.
$$ \begin{aligned} 50000 &= x \cdot 128210000 \\[1.2 em] 128210000 \cdot x &= 50000 \\[1.2 em] x &= \dfrac{ 50000 }{ 128210000 } \\[1.2 em] x &= 0.0004 \end{aligned} $$Step 3: Express $ x $ as a percentage.
$$ x = 0.0004 = 0.0004 ~~\cdot~~ 100 \% = 0.04 \% $$