Home / 12,387,515.70-18,581,273.55-8,082,843.60

Finding the Fourth Proportional to 12,387,515.70, 18,581,273.55 and 8,082,843.60

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Solution

The fourth proportional to 12,387,515.70, 18,581,273.55 and 8,082,843.60 is: 12,124,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,515.70 : 18,581,273.55 = 8,082,843.60 : x
  2. Step 2: Convert to fraction form
    12,387,515.70/18,581,273.55 = 8,082,843.60/x
  3. Step 3: Cross multiply
    12,387,515.70x = 18,581,273.55 × 8,082,843.60
  4. Step 4: Simplify right side
    12,387,515.70x = 150,189,527,993,466.78
  5. Step 5: Solve for x
    x = 150,189,527,993,466.78/12,387,515.70
  6. Step 6: Final answer
    x = 12,124,265.40

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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.