Home / 12,800,321.14-19,200,500.18-5,227,286.88

Finding the Fourth Proportional to 12,800,321.14, 19,200,500.18 and 5,227,286.88

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Solution

The fourth proportional to 12,800,321.14, 19,200,500.18 and 5,227,286.88 is: 7,840,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800,321.14 : 19,200,500.18 = 5,227,286.88 : x
  2. Step 2: Convert to fraction form
    12,800,321.14/19,200,500.18 = 5,227,286.88/x
  3. Step 3: Cross multiply
    12,800,321.14x = 19,200,500.18 × 5,227,286.88
  4. Step 4: Simplify right side
    12,800,321.14x = 100,366,522,680,351.64
  5. Step 5: Solve for x
    x = 100,366,522,680,351.64/12,800,321.14
  6. Step 6: Final answer
    x = 7,840,937.86

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1.5x scale

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.