The product of two inner terms of a ratio is the smallest composite number, if one outer term of this ratio is (1/4), then what is the other outer term
一个比例的两个内项之积是最小的合数，如果这个比例的一个外项是(1/4)，那么另一个外项是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4 / (1/4)</gadget>
<output>16</output>

<result>16</result>