Home / 726,424,243.20-1,002,486,723.84-396,420,652.80

Finding the Fourth Proportional to 726,424,243.20, 1,002,486,723.84 and 396,420,652.80

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Solution

The fourth proportional to 726,424,243.20, 1,002,486,723.84 and 396,420,652.80 is: 547,072,107.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,424,243.20 : 1,002,486,723.84 = 396,420,652.80 : x
  2. Step 2: Convert to fraction form
    726,424,243.20/1,002,486,723.84 = 396,420,652.80/x
  3. Step 3: Cross multiply
    726,424,243.20x = 1,002,486,723.84 × 396,420,652.80
  4. Step 4: Simplify right side
    726,424,243.20x = 397,406,441,487,986,176
  5. Step 5: Solve for x
    x = 397,406,441,487,986,176/726,424,243.20
  6. Step 6: Final answer
    x = 547,072,107.25

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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.