Home / 12,485,714.20-18,729,818.70-3,387,956.20

Finding the Fourth Proportional to 12,485,714.20, 18,729,818.70 and 3,387,956.20

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Solution

The fourth proportional to 12,485,714.20, 18,729,818.70 and 3,387,956.20 is: 5,082,272.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,714.20 : 18,729,818.70 = 3,387,956.20 : x
  2. Step 2: Convert to fraction form
    12,485,714.20/18,729,818.70 = 3,387,956.20/x
  3. Step 3: Cross multiply
    12,485,714.20x = 18,729,818.70 × 3,387,956.20
  4. Step 4: Simplify right side
    12,485,714.20x = 63,455,805,389,540.94
  5. Step 5: Solve for x
    x = 63,455,805,389,540.94/12,485,714.20
  6. Step 6: Final answer
    x = 5,082,272.78

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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.