The two outer terms of a ratio are reciprocals of each other, if one inner term is 0.25, what is the other inner term
一个比例的两个外项互为倒数，如果一个内项是0.25，另一个内项是多少
<gadget id="calculator">1 / 0.25</gadget>
<output>4</output>

<result>4</result>