Finding the Fourth Proportional to 431,367,134.40, 647,050,701.60 and 323,871,710.40
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Solution
The fourth proportional to 431,367,134.40, 647,050,701.60 and 323,871,710.40 is: 485,807,565.60
Step by Step Solution
- Step 1: Write the proportion equation
431,367,134.40 : 647,050,701.60 = 323,871,710.40 : x - Step 2: Convert to fraction form
431,367,134.40/647,050,701.60 = 323,871,710.40/x - Step 3: Cross multiply
431,367,134.40x = 647,050,701.60 × 323,871,710.40 - Step 4: Simplify right side
431,367,134.40x = 209,561,417,442,712,000 - Step 5: Solve for x
x = 209,561,417,442,712,000/431,367,134.40 - Step 6: Final answer
x = 485,807,565.60
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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.