Home / 499,310,906.52-689,100,916.14-287,625,052.92

Finding the Fourth Proportional to 499,310,906.52, 689,100,916.14 and 287,625,052.92

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Solution

The fourth proportional to 499,310,906.52, 689,100,916.14 and 287,625,052.92 is: 396,952,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,310,906.52 : 689,100,916.14 = 287,625,052.92 : x
  2. Step 2: Convert to fraction form
    499,310,906.52/689,100,916.14 = 287,625,052.92/x
  3. Step 3: Cross multiply
    499,310,906.52x = 689,100,916.14 × 287,625,052.92
  4. Step 4: Simplify right side
    499,310,906.52x = 198,202,687,471,988,000
  5. Step 5: Solve for x
    x = 198,202,687,471,988,000/499,310,906.52
  6. Step 6: Final answer
    x = 396,952,449.63

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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.