Finding the Fourth Proportional to 66,298,121.20, 99,279,220.20 and 52,861,193.20
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Solution
The fourth proportional to 66,298,121.20, 99,279,220.20 and 52,861,193.20 is: 79,157,869.71
Step by Step Solution
- Step 1: Write the proportion equation
66,298,121.20 : 99,279,220.20 = 52,861,193.20 : x - Step 2: Convert to fraction form
66,298,121.20/99,279,220.20 = 52,861,193.20/x - Step 3: Cross multiply
66,298,121.20x = 99,279,220.20 × 52,861,193.20 - Step 4: Simplify right side
66,298,121.20x = 5,248,018,039,737,543 - Step 5: Solve for x
x = 5,248,018,039,737,543/66,298,121.20 - Step 6: Final answer
x = 79,157,869.71
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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.