Home / 726,408,106.80-1,002,433,781.46-396,377,559.60

Finding the Fourth Proportional to 726,408,106.80, 1,002,433,781.46 and 396,377,559.60

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Solution

The fourth proportional to 726,408,106.80, 1,002,433,781.46 and 396,377,559.60 is: 546,995,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,408,106.80 : 1,002,433,781.46 = 396,377,559.60 : x
  2. Step 2: Convert to fraction form
    726,408,106.80/1,002,433,781.46 = 396,377,559.60/x
  3. Step 3: Cross multiply
    726,408,106.80x = 1,002,433,781.46 × 396,377,559.60
  4. Step 4: Simplify right side
    726,408,106.80x = 397,342,255,955,714,560
  5. Step 5: Solve for x
    x = 397,342,255,955,714,560/726,408,106.80
  6. Step 6: Final answer
    x = 546,995,899.74

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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.