Home / 13,591,581.37-20,377,188.94-8,198,974.78

Finding the Fourth Proportional to 13,591,581.37, 20,377,188.94 and 8,198,974.78

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Solution

The fourth proportional to 13,591,581.37, 20,377,188.94 and 8,198,974.78 is: 12,292,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591,581.37 : 20,377,188.94 = 8,198,974.78 : x
  2. Step 2: Convert to fraction form
    13,591,581.37/20,377,188.94 = 8,198,974.78/x
  3. Step 3: Cross multiply
    13,591,581.37x = 20,377,188.94 × 8,198,974.78
  4. Step 4: Simplify right side
    13,591,581.37x = 167,072,058,264,909.28
  5. Step 5: Solve for x
    x = 167,072,058,264,909.28/13,591,581.37
  6. Step 6: Final answer
    x = 12,292,319.32

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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.