Home / 40,025,860.22-55,235,734.36-21,691,145.72

Finding the Fourth Proportional to 40,025,860.22, 55,235,734.36 and 21,691,145.72

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Solution

The fourth proportional to 40,025,860.22, 55,235,734.36 and 21,691,145.72 is: 29,933,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,860.22 : 55,235,734.36 = 21,691,145.72 : x
  2. Step 2: Convert to fraction form
    40,025,860.22/55,235,734.36 = 21,691,145.72/x
  3. Step 3: Cross multiply
    40,025,860.22x = 55,235,734.36 × 21,691,145.72
  4. Step 4: Simplify right side
    40,025,860.22x = 1,198,126,363,037,832.50
  5. Step 5: Solve for x
    x = 1,198,126,363,037,832.50/40,025,860.22
  6. Step 6: Final answer
    x = 29,933,806.70

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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.