Home / 78,343,610.10-117,534,077.55-37,920,851.70

Finding the Fourth Proportional to 78,343,610.10, 117,534,077.55 and 37,920,851.70

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Solution

The fourth proportional to 78,343,610.10, 117,534,077.55 and 37,920,851.70 is: 56,890,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,343,610.10 : 117,534,077.55 = 37,920,851.70 : x
  2. Step 2: Convert to fraction form
    78,343,610.10/117,534,077.55 = 37,920,851.70/x
  3. Step 3: Cross multiply
    78,343,610.10x = 117,534,077.55 × 37,920,851.70
  4. Step 4: Simplify right side
    78,343,610.10x = 4,456,992,324,469,849.50
  5. Step 5: Solve for x
    x = 4,456,992,324,469,849.50/78,343,610.10
  6. Step 6: Final answer
    x = 56,890,310.76

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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.