Home / 20,347,872.54-28,080,057.51-11,181,105.78

Finding the Fourth Proportional to 20,347,872.54, 28,080,057.51 and 11,181,105.78

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Solution

The fourth proportional to 20,347,872.54, 28,080,057.51 and 11,181,105.78 is: 15,429,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,872.54 : 28,080,057.51 = 11,181,105.78 : x
  2. Step 2: Convert to fraction form
    20,347,872.54/28,080,057.51 = 11,181,105.78/x
  3. Step 3: Cross multiply
    20,347,872.54x = 28,080,057.51 × 11,181,105.78
  4. Step 4: Simplify right side
    20,347,872.54x = 313,966,093,327,793.44
  5. Step 5: Solve for x
    x = 313,966,093,327,793.44/20,347,872.54
  6. Step 6: Final answer
    x = 15,429,922.35

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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.