Finding the Fourth Proportional to 113,280,811.68, 156,270,926.70 and 71,516,634.96
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Solution
The fourth proportional to 113,280,811.68, 156,270,926.70 and 71,516,634.96 is: 98,657,227.59
Step by Step Solution
- Step 1: Write the proportion equation
113,280,811.68 : 156,270,926.70 = 71,516,634.96 : x - Step 2: Convert to fraction form
113,280,811.68/156,270,926.70 = 71,516,634.96/x - Step 3: Cross multiply
113,280,811.68x = 156,270,926.70 × 71,516,634.96 - Step 4: Simplify right side
113,280,811.68x = 11,175,970,819,664,816 - Step 5: Solve for x
x = 11,175,970,819,664,816/113,280,811.68 - Step 6: Final answer
x = 98,657,227.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.