Home / 71,854,469.03-107,780,147.33-20,037,689.09

Finding the Fourth Proportional to 71,854,469.03, 107,780,147.33 and 20,037,689.09

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Solution

The fourth proportional to 71,854,469.03, 107,780,147.33 and 20,037,689.09 is: 30,056,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,854,469.03 : 107,780,147.33 = 20,037,689.09 : x
  2. Step 2: Convert to fraction form
    71,854,469.03/107,780,147.33 = 20,037,689.09/x
  3. Step 3: Cross multiply
    71,854,469.03x = 107,780,147.33 × 20,037,689.09
  4. Step 4: Simplify right side
    71,854,469.03x = 2,159,665,082,442,195.75
  5. Step 5: Solve for x
    x = 2,159,665,082,442,195.75/71,854,469.03
  6. Step 6: Final answer
    x = 30,056,099.67

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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.