Zhao Xiaoxiao's height is 1.6m, and her shadow length is 2.4m. If the shadow length of a tree is 4m measured at the same place at the same time, how tall is the tree? (Solve with ratio)
赵潇潇的身高1.6m，她的影长是2.4m．如果同一时间，同一地点测得一棵树的影长4m，这棵树有多高？(用比例解)
<gadget id="calculator">1.6 * 4</gadget>
<output>6.4</output>

<gadget id="calculator">6.4 / 2.4</gadget>
<output>2.666667</output>

<result>2.666667</result>