Home / 20,764,034.10-31,146,051.15-12,253,979.70

Finding the Fourth Proportional to 20,764,034.10, 31,146,051.15 and 12,253,979.70

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Solution

The fourth proportional to 20,764,034.10, 31,146,051.15 and 12,253,979.70 is: 18,380,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,034.10 : 31,146,051.15 = 12,253,979.70 : x
  2. Step 2: Convert to fraction form
    20,764,034.10/31,146,051.15 = 12,253,979.70/x
  3. Step 3: Cross multiply
    20,764,034.10x = 31,146,051.15 × 12,253,979.70
  4. Step 4: Simplify right side
    20,764,034.10x = 381,663,078,527,261.62
  5. Step 5: Solve for x
    x = 381,663,078,527,261.62/20,764,034.10
  6. Step 6: Final answer
    x = 18,380,969.55

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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.