Home / 431,567,997.90-647,351,996.85-189,230,901.90

Finding the Fourth Proportional to 431,567,997.90, 647,351,996.85 and 189,230,901.90

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Solution

The fourth proportional to 431,567,997.90, 647,351,996.85 and 189,230,901.90 is: 283,846,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,567,997.90 : 647,351,996.85 = 189,230,901.90 : x
  2. Step 2: Convert to fraction form
    431,567,997.90/647,351,996.85 = 189,230,901.90/x
  3. Step 3: Cross multiply
    431,567,997.90x = 647,351,996.85 × 189,230,901.90
  4. Step 4: Simplify right side
    431,567,997.90x = 122,499,002,210,691,472
  5. Step 5: Solve for x
    x = 122,499,002,210,691,472/431,567,997.90
  6. Step 6: Final answer
    x = 283,846,352.85

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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.