Home / 20,794,279.86-28,694,180.43-11,501,649.96

Finding the Fourth Proportional to 20,794,279.86, 28,694,180.43 and 11,501,649.96

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Solution

The fourth proportional to 20,794,279.86, 28,694,180.43 and 11,501,649.96 is: 15,871,211.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794,279.86 : 28,694,180.43 = 11,501,649.96 : x
  2. Step 2: Convert to fraction form
    20,794,279.86/28,694,180.43 = 11,501,649.96/x
  3. Step 3: Cross multiply
    20,794,279.86x = 28,694,180.43 × 11,501,649.96
  4. Step 4: Simplify right side
    20,794,279.86x = 330,030,419,194,942.31
  5. Step 5: Solve for x
    x = 330,030,419,194,942.31/20,794,279.86
  6. Step 6: Final answer
    x = 15,871,211.77

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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.