Home / 20,811,382.11-31,219,170.66-7,162,734.76

Finding the Fourth Proportional to 20,811,382.11, 31,219,170.66 and 7,162,734.76

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Solution

The fourth proportional to 20,811,382.11, 31,219,170.66 and 7,162,734.76 is: 10,744,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,382.11 : 31,219,170.66 = 7,162,734.76 : x
  2. Step 2: Convert to fraction form
    20,811,382.11/31,219,170.66 = 7,162,734.76/x
  3. Step 3: Cross multiply
    20,811,382.11x = 31,219,170.66 × 7,162,734.76
  4. Step 4: Simplify right side
    20,811,382.11x = 223,614,638,786,706.22
  5. Step 5: Solve for x
    x = 223,614,638,786,706.22/20,811,382.11
  6. Step 6: Final answer
    x = 10,744,824.04

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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.