Home / 726,408,107.30-1,002,433,782.15-396,377,560.10

Finding the Fourth Proportional to 726,408,107.30, 1,002,433,782.15 and 396,377,560.10

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Solution

The fourth proportional to 726,408,107.30, 1,002,433,782.15 and 396,377,560.10 is: 546,995,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,408,107.30 : 1,002,433,782.15 = 396,377,560.10 : x
  2. Step 2: Convert to fraction form
    726,408,107.30/1,002,433,782.15 = 396,377,560.10/x
  3. Step 3: Cross multiply
    726,408,107.30x = 1,002,433,782.15 × 396,377,560.10
  4. Step 4: Simplify right side
    726,408,107.30x = 397,342,256,725,419,776
  5. Step 5: Solve for x
    x = 397,342,256,725,419,776/726,408,107.30
  6. Step 6: Final answer
    x = 546,995,900.42

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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.