Finding the Fourth Proportional to 100,732,657.80, 151,098,986.70 and 80,577,265.80
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Solution
The fourth proportional to 100,732,657.80, 151,098,986.70 and 80,577,265.80 is: 120,865,898.70
Step by Step Solution
- Step 1: Write the proportion equation
100,732,657.80 : 151,098,986.70 = 80,577,265.80 : x - Step 2: Convert to fraction form
100,732,657.80/151,098,986.70 = 80,577,265.80/x - Step 3: Cross multiply
100,732,657.80x = 151,098,986.70 × 80,577,265.80 - Step 4: Simplify right side
100,732,657.80x = 12,175,143,213,436,564 - Step 5: Solve for x
x = 12,175,143,213,436,564/100,732,657.80 - Step 6: Final answer
x = 120,865,898.70
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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.