Home / 12,471,691.80-18,693,540.90-5,282,002.20

Finding the Fourth Proportional to 12,471,691.80, 18,693,540.90 and 5,282,002.20

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Solution

The fourth proportional to 12,471,691.80, 18,693,540.90 and 5,282,002.20 is: 7,917,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471,691.80 : 18,693,540.90 = 5,282,002.20 : x
  2. Step 2: Convert to fraction form
    12,471,691.80/18,693,540.90 = 5,282,002.20/x
  3. Step 3: Cross multiply
    12,471,691.80x = 18,693,540.90 × 5,282,002.20
  4. Step 4: Simplify right side
    12,471,691.80x = 98,739,324,159,589.97
  5. Step 5: Solve for x
    x = 98,739,324,159,589.97/12,471,691.80
  6. Step 6: Final answer
    x = 7,917,075.39

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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.