Two vehicles A and B jointly transport a batch of goods. The original plan is that vehicle A transports twice as much cargo as that of vehicle B. In fact, vehicle B transports 4 tons more than the original plan. In this way, vehicle A only transports this batch of goods (14 /27), how many tons are there in total for this batch of goods?
甲、乙两辆汽车合运一批货物，原计划甲车运货量是乙车的2倍，实际乙车比原计划多运4吨，这样甲车就只运了这批货物的(14/27)，求这批货物共有多少吨？
<gadget id="calculator">14 / 27</gadget>
<output>14/27 = around 0.518519</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (14/27) - (1/3)</gadget>
<output>4/27 = around 0.148148</output>

<gadget id="calculator">4 / (4/27)</gadget>
<output>27</output>

<result>27</result>