Home / 31,505,908.44-43,486,243.20-20,520,033.96

Finding the Fourth Proportional to 31,505,908.44, 43,486,243.20 and 20,520,033.96

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Solution

The fourth proportional to 31,505,908.44, 43,486,243.20 and 20,520,033.96 is: 28,322,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505,908.44 : 43,486,243.20 = 20,520,033.96 : x
  2. Step 2: Convert to fraction form
    31,505,908.44/43,486,243.20 = 20,520,033.96/x
  3. Step 3: Cross multiply
    31,505,908.44x = 43,486,243.20 × 20,520,033.96
  4. Step 4: Simplify right side
    31,505,908.44x = 892,339,187,256,819.12
  5. Step 5: Solve for x
    x = 892,339,187,256,819.12/31,505,908.44
  6. Step 6: Final answer
    x = 28,322,915.65

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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.