Home / 131,397,584.13-181,329,840.81-72,664,200.90

Finding the Fourth Proportional to 131,397,584.13, 181,329,840.81 and 72,664,200.90

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Solution

The fourth proportional to 131,397,584.13, 181,329,840.81 and 72,664,200.90 is: 100,277,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397,584.13 : 181,329,840.81 = 72,664,200.90 : x
  2. Step 2: Convert to fraction form
    131,397,584.13/181,329,840.81 = 72,664,200.90/x
  3. Step 3: Cross multiply
    131,397,584.13x = 181,329,840.81 × 72,664,200.90
  4. Step 4: Simplify right side
    131,397,584.13x = 13,176,187,981,782,860
  5. Step 5: Solve for x
    x = 13,176,187,981,782,860/131,397,584.13
  6. Step 6: Final answer
    x = 100,277,246.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.