Home / 18,951,135.40-28,428,694.62-6,172,635.88

Finding the Fourth Proportional to 18,951,135.40, 28,428,694.62 and 6,172,635.88

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Solution

The fourth proportional to 18,951,135.40, 28,428,694.62 and 6,172,635.88 is: 9,259,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951,135.40 : 28,428,694.62 = 6,172,635.88 : x
  2. Step 2: Convert to fraction form
    18,951,135.40/28,428,694.62 = 6,172,635.88/x
  3. Step 3: Cross multiply
    18,951,135.40x = 28,428,694.62 × 6,172,635.88
  4. Step 4: Simplify right side
    18,951,135.40x = 175,479,980,432,974.97
  5. Step 5: Solve for x
    x = 175,479,980,432,974.97/18,951,135.40
  6. Step 6: Final answer
    x = 9,259,602.48

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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.