Home / 18,144,843.80-27,179,940.90-12,471,474.20

Finding the Fourth Proportional to 18,144,843.80, 27,179,940.90 and 12,471,474.20

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Solution

The fourth proportional to 18,144,843.80, 27,179,940.90 and 12,471,474.20 is: 18,681,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,843.80 : 27,179,940.90 = 12,471,474.20 : x
  2. Step 2: Convert to fraction form
    18,144,843.80/27,179,940.90 = 12,471,474.20/x
  3. Step 3: Cross multiply
    18,144,843.80x = 27,179,940.90 × 12,471,474.20
  4. Step 4: Simplify right side
    18,144,843.80x = 338,973,931,691,874.75
  5. Step 5: Solve for x
    x = 338,973,931,691,874.75/18,144,843.80
  6. Step 6: Final answer
    x = 18,681,556.89

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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.