Home / 20,510,761.20-28,304,621.12-11,218,598.24

Finding the Fourth Proportional to 20,510,761.20, 28,304,621.12 and 11,218,598.24

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Solution

The fourth proportional to 20,510,761.20, 28,304,621.12 and 11,218,598.24 is: 15,481,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510,761.20 : 28,304,621.12 = 11,218,598.24 : x
  2. Step 2: Convert to fraction form
    20,510,761.20/28,304,621.12 = 11,218,598.24/x
  3. Step 3: Cross multiply
    20,510,761.20x = 28,304,621.12 × 11,218,598.24
  4. Step 4: Simplify right side
    20,510,761.20x = 317,538,172,680,698.88
  5. Step 5: Solve for x
    x = 317,538,172,680,698.88/20,510,761.20
  6. Step 6: Final answer
    x = 15,481,540.13

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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.