Home / 239,699,379.24-330,785,138.16-129,691,092.24

Finding the Fourth Proportional to 239,699,379.24, 330,785,138.16 and 129,691,092.24

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Solution

The fourth proportional to 239,699,379.24, 330,785,138.16 and 129,691,092.24 is: 178,973,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,699,379.24 : 330,785,138.16 = 129,691,092.24 : x
  2. Step 2: Convert to fraction form
    239,699,379.24/330,785,138.16 = 129,691,092.24/x
  3. Step 3: Cross multiply
    239,699,379.24x = 330,785,138.16 × 129,691,092.24
  4. Step 4: Simplify right side
    239,699,379.24x = 42,899,885,864,729,704
  5. Step 5: Solve for x
    x = 42,899,885,864,729,704/239,699,379.24
  6. Step 6: Final answer
    x = 178,973,704.48

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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.