Home / 13,457,426.70-20,162,083.05-8,189,672.70

Finding the Fourth Proportional to 13,457,426.70, 20,162,083.05 and 8,189,672.70

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Solution

The fourth proportional to 13,457,426.70, 20,162,083.05 and 8,189,672.70 is: 12,269,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,426.70 : 20,162,083.05 = 8,189,672.70 : x
  2. Step 2: Convert to fraction form
    13,457,426.70/20,162,083.05 = 8,189,672.70/x
  3. Step 3: Cross multiply
    13,457,426.70x = 20,162,083.05 × 8,189,672.70
  4. Step 4: Simplify right side
    13,457,426.70x = 165,120,861,129,717.75
  5. Step 5: Solve for x
    x = 165,120,861,129,717.75/13,457,426.70
  6. Step 6: Final answer
    x = 12,269,868.88

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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.