Home / 850,881,616.20-1,174,306,905.24-498,753,459.64

Finding the Fourth Proportional to 850,881,616.20, 1,174,306,905.24 and 498,753,459.64

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Solution

The fourth proportional to 850,881,616.20, 1,174,306,905.24 and 498,753,459.64 is: 688,332,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,881,616.20 : 1,174,306,905.24 = 498,753,459.64 : x
  2. Step 2: Convert to fraction form
    850,881,616.20/1,174,306,905.24 = 498,753,459.64/x
  3. Step 3: Cross multiply
    850,881,616.20x = 1,174,306,905.24 × 498,753,459.64
  4. Step 4: Simplify right side
    850,881,616.20x = 585,689,631,667,591,680
  5. Step 5: Solve for x
    x = 585,689,631,667,591,680/850,881,616.20
  6. Step 6: Final answer
    x = 688,332,689.90

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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.