Home / 739,623,018.42-1,107,673,489.62-428,074,589.52

Finding the Fourth Proportional to 739,623,018.42, 1,107,673,489.62 and 428,074,589.52

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Solution

The fourth proportional to 739,623,018.42, 1,107,673,489.62 and 428,074,589.52 is: 641,092,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,623,018.42 : 1,107,673,489.62 = 428,074,589.52 : x
  2. Step 2: Convert to fraction form
    739,623,018.42/1,107,673,489.62 = 428,074,589.52/x
  3. Step 3: Cross multiply
    739,623,018.42x = 1,107,673,489.62 × 428,074,589.52
  4. Step 4: Simplify right side
    739,623,018.42x = 474,166,874,391,267,392
  5. Step 5: Solve for x
    x = 474,166,874,391,267,392/739,623,018.42
  6. Step 6: Final answer
    x = 641,092,641.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.