Home / 218,734,272.72-327,908,321.72-82,515,315.92

Finding the Fourth Proportional to 218,734,272.72, 327,908,321.72 and 82,515,315.92

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Solution

The fourth proportional to 218,734,272.72, 327,908,321.72 and 82,515,315.92 is: 123,700,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,734,272.72 : 327,908,321.72 = 82,515,315.92 : x
  2. Step 2: Convert to fraction form
    218,734,272.72/327,908,321.72 = 82,515,315.92/x
  3. Step 3: Cross multiply
    218,734,272.72x = 327,908,321.72 × 82,515,315.92
  4. Step 4: Simplify right side
    218,734,272.72x = 27,057,458,759,522,800
  5. Step 5: Solve for x
    x = 27,057,458,759,522,800/218,734,272.72
  6. Step 6: Final answer
    x = 123,700,133.61

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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.