Home / 12,002,187.72-18,003,861.54-3,915,147.72

Finding the Fourth Proportional to 12,002,187.72, 18,003,861.54 and 3,915,147.72

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Solution

The fourth proportional to 12,002,187.72, 18,003,861.54 and 3,915,147.72 is: 5,872,910.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002,187.72 : 18,003,861.54 = 3,915,147.72 : x
  2. Step 2: Convert to fraction form
    12,002,187.72/18,003,861.54 = 3,915,147.72/x
  3. Step 3: Cross multiply
    12,002,187.72x = 18,003,861.54 × 3,915,147.72
  4. Step 4: Simplify right side
    12,002,187.72x = 70,487,777,459,526.69
  5. Step 5: Solve for x
    x = 70,487,777,459,526.69/12,002,187.72
  6. Step 6: Final answer
    x = 5,872,910.76

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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.