Home / 18,374,013.60-27,561,020.40-11,991,472.80

Finding the Fourth Proportional to 18,374,013.60, 27,561,020.40 and 11,991,472.80

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Solution

The fourth proportional to 18,374,013.60, 27,561,020.40 and 11,991,472.80 is: 17,987,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374,013.60 : 27,561,020.40 = 11,991,472.80 : x
  2. Step 2: Convert to fraction form
    18,374,013.60/27,561,020.40 = 11,991,472.80/x
  3. Step 3: Cross multiply
    18,374,013.60x = 27,561,020.40 × 11,991,472.80
  4. Step 4: Simplify right side
    18,374,013.60x = 330,497,226,466,845.12
  5. Step 5: Solve for x
    x = 330,497,226,466,845.12/18,374,013.60
  6. Step 6: Final answer
    x = 17,987,209.20

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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.