Finding the Fourth Proportional to 145,158,265.20, 217,737,397.80 and 99,808,633.20
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Solution
The fourth proportional to 145,158,265.20, 217,737,397.80 and 99,808,633.20 is: 149,712,949.80
Step by Step Solution
- Step 1: Write the proportion equation
145,158,265.20 : 217,737,397.80 = 99,808,633.20 : x - Step 2: Convert to fraction form
145,158,265.20/217,737,397.80 = 99,808,633.20/x - Step 3: Cross multiply
145,158,265.20x = 217,737,397.80 × 99,808,633.20 - Step 4: Simplify right side
145,158,265.20x = 21,732,072,070,942,688 - Step 5: Solve for x
x = 21,732,072,070,942,688/145,158,265.20 - Step 6: Final answer
x = 149,712,949.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.