Home / 729,844,002.28-1,007,132,435.24-428,441,551.90

Finding the Fourth Proportional to 729,844,002.28, 1,007,132,435.24 and 428,441,551.90

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Solution

The fourth proportional to 729,844,002.28, 1,007,132,435.24 and 428,441,551.90 is: 591,218,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,844,002.28 : 1,007,132,435.24 = 428,441,551.90 : x
  2. Step 2: Convert to fraction form
    729,844,002.28/1,007,132,435.24 = 428,441,551.90/x
  3. Step 3: Cross multiply
    729,844,002.28x = 1,007,132,435.24 × 428,441,551.90
  4. Step 4: Simplify right side
    729,844,002.28x = 431,497,383,523,051,840
  5. Step 5: Solve for x
    x = 431,497,383,523,051,840/729,844,002.28
  6. Step 6: Final answer
    x = 591,218,646.96

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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.