Finding the Fourth Proportional to 272,052,753.20, 408,079,129.80 and 272,052,753.20
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Solution
The fourth proportional to 272,052,753.20, 408,079,129.80 and 272,052,753.20 is: 408,079,129.80
Step by Step Solution
- Step 1: Write the proportion equation
272,052,753.20 : 408,079,129.80 = 272,052,753.20 : x - Step 2: Convert to fraction form
272,052,753.20/408,079,129.80 = 272,052,753.20/x - Step 3: Cross multiply
272,052,753.20x = 408,079,129.80 × 272,052,753.20 - Step 4: Simplify right side
272,052,753.20x = 111,019,050,785,550,160 - Step 5: Solve for x
x = 111,019,050,785,550,160/272,052,753.20 - Step 6: Final answer
x = 408,079,129.80
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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.