Home / 87,221,480.78-120,366,450.63-48,064,658.76

Finding the Fourth Proportional to 87,221,480.78, 120,366,450.63 and 48,064,658.76

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Solution

The fourth proportional to 87,221,480.78, 120,366,450.63 and 48,064,658.76 is: 66,329,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,221,480.78 : 120,366,450.63 = 48,064,658.76 : x
  2. Step 2: Convert to fraction form
    87,221,480.78/120,366,450.63 = 48,064,658.76/x
  3. Step 3: Cross multiply
    87,221,480.78x = 120,366,450.63 × 48,064,658.76
  4. Step 4: Simplify right side
    87,221,480.78x = 5,785,372,375,683,337
  5. Step 5: Solve for x
    x = 5,785,372,375,683,337/87,221,480.78
  6. Step 6: Final answer
    x = 66,329,673.88

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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.