Finding the Fourth Proportional to 252,761,968.80, 378,576,082.80 and 207,412,336.80
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Solution
The fourth proportional to 252,761,968.80, 378,576,082.80 and 207,412,336.80 is: 310,653,340.62
Step by Step Solution
- Step 1: Write the proportion equation
252,761,968.80 : 378,576,082.80 = 207,412,336.80 : x - Step 2: Convert to fraction form
252,761,968.80/378,576,082.80 = 207,412,336.80/x - Step 3: Cross multiply
252,761,968.80x = 378,576,082.80 × 207,412,336.80 - Step 4: Simplify right side
252,761,968.80x = 78,521,349,990,138,288 - Step 5: Solve for x
x = 78,521,349,990,138,288/252,761,968.80 - Step 6: Final answer
x = 310,653,340.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.