Home / 12,507,580.82-18,761,174.13-3,987,859.88

Finding the Fourth Proportional to 12,507,580.82, 18,761,174.13 and 3,987,859.88

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Solution

The fourth proportional to 12,507,580.82, 18,761,174.13 and 3,987,859.88 is: 5,981,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,580.82 : 18,761,174.13 = 3,987,859.88 : x
  2. Step 2: Convert to fraction form
    12,507,580.82/18,761,174.13 = 3,987,859.88/x
  3. Step 3: Cross multiply
    12,507,580.82x = 18,761,174.13 × 3,987,859.88
  4. Step 4: Simplify right side
    12,507,580.82x = 74,816,933,614,720.89
  5. Step 5: Solve for x
    x = 74,816,933,614,720.89/12,507,580.82
  6. Step 6: Final answer
    x = 5,981,726.98

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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.