Home / 20,561,861.92-28,375,029.84-11,269,360.48

Finding the Fourth Proportional to 20,561,861.92, 28,375,029.84 and 11,269,360.48

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Solution

The fourth proportional to 20,561,861.92, 28,375,029.84 and 11,269,360.48 is: 15,551,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,861.92 : 28,375,029.84 = 11,269,360.48 : x
  2. Step 2: Convert to fraction form
    20,561,861.92/28,375,029.84 = 11,269,360.48/x
  3. Step 3: Cross multiply
    20,561,861.92x = 28,375,029.84 × 11,269,360.48
  4. Step 4: Simplify right side
    20,561,861.92x = 319,768,439,897,716.75
  5. Step 5: Solve for x
    x = 319,768,439,897,716.75/20,561,861.92
  6. Step 6: Final answer
    x = 15,551,531.33

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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.