Home / 82,589,879.80-123,743,102.10-39,366,011.80

Finding the Fourth Proportional to 82,589,879.80, 123,743,102.10 and 39,366,011.80

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Solution

The fourth proportional to 82,589,879.80, 123,743,102.10 and 39,366,011.80 is: 58,981,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,589,879.80 : 123,743,102.10 = 39,366,011.80 : x
  2. Step 2: Convert to fraction form
    82,589,879.80/123,743,102.10 = 39,366,011.80/x
  3. Step 3: Cross multiply
    82,589,879.80x = 123,743,102.10 × 39,366,011.80
  4. Step 4: Simplify right side
    82,589,879.80x = 4,871,272,417,437,204
  5. Step 5: Solve for x
    x = 4,871,272,417,437,204/82,589,879.80
  6. Step 6: Final answer
    x = 58,981,468.79

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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.