Home / 729,844,003.28-1,007,132,436.62-428,441,552.90

Finding the Fourth Proportional to 729,844,003.28, 1,007,132,436.62 and 428,441,552.90

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Solution

The fourth proportional to 729,844,003.28, 1,007,132,436.62 and 428,441,552.90 is: 591,218,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,844,003.28 : 1,007,132,436.62 = 428,441,552.90 : x
  2. Step 2: Convert to fraction form
    729,844,003.28/1,007,132,436.62 = 428,441,552.90/x
  3. Step 3: Cross multiply
    729,844,003.28x = 1,007,132,436.62 × 428,441,552.90
  4. Step 4: Simplify right side
    729,844,003.28x = 431,497,385,121,433,600
  5. Step 5: Solve for x
    x = 431,497,385,121,433,600/729,844,003.28
  6. Step 6: Final answer
    x = 591,218,648.34

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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.