Finding the Fourth Proportional to 265,721,139.20, 398,581,708.80 and 248,715,027.20
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Solution
The fourth proportional to 265,721,139.20, 398,581,708.80 and 248,715,027.20 is: 373,072,540.80
Step by Step Solution
- Step 1: Write the proportion equation
265,721,139.20 : 398,581,708.80 = 248,715,027.20 : x - Step 2: Convert to fraction form
265,721,139.20/398,581,708.80 = 248,715,027.20/x - Step 3: Cross multiply
265,721,139.20x = 398,581,708.80 × 248,715,027.20 - Step 4: Simplify right side
265,721,139.20x = 99,133,260,545,614,480 - Step 5: Solve for x
x = 99,133,260,545,614,480/265,721,139.20 - Step 6: Final answer
x = 373,072,540.80
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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.