Home / 72,191,703.71-108,279,879.18-20,375,025.23

Finding the Fourth Proportional to 72,191,703.71, 108,279,879.18 and 20,375,025.23

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Solution

The fourth proportional to 72,191,703.71, 108,279,879.18 and 20,375,025.23 is: 30,560,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,191,703.71 : 108,279,879.18 = 20,375,025.23 : x
  2. Step 2: Convert to fraction form
    72,191,703.71/108,279,879.18 = 20,375,025.23/x
  3. Step 3: Cross multiply
    72,191,703.71x = 108,279,879.18 × 20,375,025.23
  4. Step 4: Simplify right side
    72,191,703.71x = 2,206,205,269,652,452.50
  5. Step 5: Solve for x
    x = 2,206,205,269,652,452.50/72,191,703.71
  6. Step 6: Final answer
    x = 30,560,371.30

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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.