Home / 18,802,375.97-25,937,729.01-12,279,823.43

Finding the Fourth Proportional to 18,802,375.97, 25,937,729.01 and 12,279,823.43

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Solution

The fourth proportional to 18,802,375.97, 25,937,729.01 and 12,279,823.43 is: 16,939,919.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,375.97 : 25,937,729.01 = 12,279,823.43 : x
  2. Step 2: Convert to fraction form
    18,802,375.97/25,937,729.01 = 12,279,823.43/x
  3. Step 3: Cross multiply
    18,802,375.97x = 25,937,729.01 × 12,279,823.43
  4. Step 4: Simplify right side
    18,802,375.97x = 318,510,732,288,300.12
  5. Step 5: Solve for x
    x = 318,510,732,288,300.12/18,802,375.97
  6. Step 6: Final answer
    x = 16,939,919.34

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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.