Home / 498,665,695.52-688,145,459.28-278,650,929.44

Finding the Fourth Proportional to 498,665,695.52, 688,145,459.28 and 278,650,929.44

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Solution

The fourth proportional to 498,665,695.52, 688,145,459.28 and 278,650,929.44 is: 384,530,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,665,695.52 : 688,145,459.28 = 278,650,929.44 : x
  2. Step 2: Convert to fraction form
    498,665,695.52/688,145,459.28 = 278,650,929.44/x
  3. Step 3: Cross multiply
    498,665,695.52x = 688,145,459.28 × 278,650,929.44
  4. Step 4: Simplify right side
    498,665,695.52x = 191,752,371,818,287,648
  5. Step 5: Solve for x
    x = 191,752,371,818,287,648/498,665,695.52
  6. Step 6: Final answer
    x = 384,530,906.26

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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.