Home / 431,406,983.30-647,115,198.86-124,701,753.38

Finding the Fourth Proportional to 431,406,983.30, 647,115,198.86 and 124,701,753.38

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Solution

The fourth proportional to 431,406,983.30, 647,115,198.86 and 124,701,753.38 is: 187,053,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,406,983.30 : 647,115,198.86 = 124,701,753.38 : x
  2. Step 2: Convert to fraction form
    431,406,983.30/647,115,198.86 = 124,701,753.38/x
  3. Step 3: Cross multiply
    431,406,983.30x = 647,115,198.86 × 124,701,753.38
  4. Step 4: Simplify right side
    431,406,983.30x = 80,696,399,933,765,552
  5. Step 5: Solve for x
    x = 80,696,399,933,765,552/431,406,983.30
  6. Step 6: Final answer
    x = 187,053,995.55

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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.