Home / 729,712,432.77-1,006,990,711.17-395,182,236.95

Finding the Fourth Proportional to 729,712,432.77, 1,006,990,711.17 and 395,182,236.95

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Solution

The fourth proportional to 729,712,432.77, 1,006,990,711.17 and 395,182,236.95 is: 545,344,746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,712,432.77 : 1,006,990,711.17 = 395,182,236.95 : x
  2. Step 2: Convert to fraction form
    729,712,432.77/1,006,990,711.17 = 395,182,236.95/x
  3. Step 3: Cross multiply
    729,712,432.77x = 1,006,990,711.17 × 395,182,236.95
  4. Step 4: Simplify right side
    729,712,432.77x = 397,944,841,822,996,992
  5. Step 5: Solve for x
    x = 397,944,841,822,996,992/729,712,432.77
  6. Step 6: Final answer
    x = 545,344,746.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.