The antecedent of a ratio is 36. After simplifying the ratio, it is 2:7. What is the posterior term of this ratio?
一个比的前项是36，把这个比化简后是2：7，这个比的后项是多少．
<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">18 * 7</gadget>
<output>126</output>

<result>126</result>