Home / 726,408,106.05-1,002,433,780.42-396,377,558.85

Finding the Fourth Proportional to 726,408,106.05, 1,002,433,780.42 and 396,377,558.85

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Solution

The fourth proportional to 726,408,106.05, 1,002,433,780.42 and 396,377,558.85 is: 546,995,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,408,106.05 : 1,002,433,780.42 = 396,377,558.85 : x
  2. Step 2: Convert to fraction form
    726,408,106.05/1,002,433,780.42 = 396,377,558.85/x
  3. Step 3: Cross multiply
    726,408,106.05x = 1,002,433,780.42 × 396,377,558.85
  4. Step 4: Simplify right side
    726,408,106.05x = 397,342,254,791,656,512
  5. Step 5: Solve for x
    x = 397,342,254,791,656,512/726,408,106.05
  6. Step 6: Final answer
    x = 546,995,898.70

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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.