Home / 72,191,702.21-108,279,876.94-20,375,023.73

Finding the Fourth Proportional to 72,191,702.21, 108,279,876.94 and 20,375,023.73

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Solution

The fourth proportional to 72,191,702.21, 108,279,876.94 and 20,375,023.73 is: 30,560,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,191,702.21 : 108,279,876.94 = 20,375,023.73 : x
  2. Step 2: Convert to fraction form
    72,191,702.21/108,279,876.94 = 20,375,023.73/x
  3. Step 3: Cross multiply
    72,191,702.21x = 108,279,876.94 × 20,375,023.73
  4. Step 4: Simplify right side
    72,191,702.21x = 2,206,205,061,541,643
  5. Step 5: Solve for x
    x = 2,206,205,061,541,643/72,191,702.21
  6. Step 6: Final answer
    x = 30,560,369.05

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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.