Home / 87,658,679.38-131,505,952.47-30,143,480.98

Finding the Fourth Proportional to 87,658,679.38, 131,505,952.47 and 30,143,480.98

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Solution

The fourth proportional to 87,658,679.38, 131,505,952.47 and 30,143,480.98 is: 45,221,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,658,679.38 : 131,505,952.47 = 30,143,480.98 : x
  2. Step 2: Convert to fraction form
    87,658,679.38/131,505,952.47 = 30,143,480.98/x
  3. Step 3: Cross multiply
    87,658,679.38x = 131,505,952.47 × 30,143,480.98
  4. Step 4: Simplify right side
    87,658,679.38x = 3,964,047,177,036,229
  5. Step 5: Solve for x
    x = 3,964,047,177,036,229/87,658,679.38
  6. Step 6: Final answer
    x = 45,221,388.29

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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.