Home / 20,187,458.70-27,854,964.09-11,485,123.26

Finding the Fourth Proportional to 20,187,458.70, 27,854,964.09 and 11,485,123.26

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Solution

The fourth proportional to 20,187,458.70, 27,854,964.09 and 11,485,123.26 is: 15,847,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,458.70 : 27,854,964.09 = 11,485,123.26 : x
  2. Step 2: Convert to fraction form
    20,187,458.70/27,854,964.09 = 11,485,123.26/x
  3. Step 3: Cross multiply
    20,187,458.70x = 27,854,964.09 × 11,485,123.26
  4. Step 4: Simplify right side
    20,187,458.70x = 319,917,695,976,523.75
  5. Step 5: Solve for x
    x = 319,917,695,976,523.75/20,187,458.70
  6. Step 6: Final answer
    x = 15,847,348.63

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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.