Home / 20,603,738.91-30,904,845.75-8,313,017.61

Finding the Fourth Proportional to 20,603,738.91, 30,904,845.75 and 8,313,017.61

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Solution

The fourth proportional to 20,603,738.91, 30,904,845.75 and 8,313,017.61 is: 12,469,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603,738.91 : 30,904,845.75 = 8,313,017.61 : x
  2. Step 2: Convert to fraction form
    20,603,738.91/30,904,845.75 = 8,313,017.61/x
  3. Step 3: Cross multiply
    20,603,738.91x = 30,904,845.75 × 8,313,017.61
  4. Step 4: Simplify right side
    20,603,738.91x = 256,912,526,954,083.66
  5. Step 5: Solve for x
    x = 256,912,526,954,083.66/20,603,738.91
  6. Step 6: Final answer
    x = 12,469,218.72

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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.