Home / 82,259,439.32-123,387,913.42-20,011,339.80

Finding the Fourth Proportional to 82,259,439.32, 123,387,913.42 and 20,011,339.80

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Solution

The fourth proportional to 82,259,439.32, 123,387,913.42 and 20,011,339.80 is: 30,016,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,259,439.32 : 123,387,913.42 = 20,011,339.80 : x
  2. Step 2: Convert to fraction form
    82,259,439.32/123,387,913.42 = 20,011,339.80/x
  3. Step 3: Cross multiply
    82,259,439.32x = 123,387,913.42 × 20,011,339.80
  4. Step 4: Simplify right side
    82,259,439.32x = 2,469,157,462,481,351
  5. Step 5: Solve for x
    x = 2,469,157,462,481,351/82,259,439.32
  6. Step 6: Final answer
    x = 30,016,706.69

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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.