The ratio of 0.28 to X is equal to the ratio of 14 to 15.
0.28和X的比等于14与15的比．
<gadget id="calculator">0.28 * 15</gadget>
<output>4.2</output>

<gadget id="calculator">4.2 / 14</gadget>
<output>0.3</output>

<result>0.3</result>