8. Xiao Li and Old Li drive from cities Jia and Yi, respectively, at the same time towards each other, and they agree to meet in city Bing (as shown in the figure below). It is known that the distance between Jia and Bing is $\frac{3}{5}$ of the distance between Yi and Bing. Xiao Li averages 72 kilometers per hour, and Old Li averages 108 kilometers per hour. When Xiao Li arrives at city Bing 15 minutes later, Old Li just arrives. The distance between Jia and Yi is kilometers.

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【Analysis】Assuming the distance between City A and City C is 72 units, then the distance between City B and City C is $72 \div 3 \times 5=120$ units. When Xiao Li has walked 72 units to arrive, Lao Li has walked 108 units, still 12 units short, which took 15 minutes. Therefore, 12 units of distance equal 27 kilometers, and the distance between City A and City B, 192 units, is $27 \div 12 \times 192=432$ kilometers.