Home / 12,471,105.60-18,712,879.20-7,083,892.80

Finding the Fourth Proportional to 12,471,105.60, 18,712,879.20 and 7,083,892.80

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Solution

The fourth proportional to 12,471,105.60, 18,712,879.20 and 7,083,892.80 is: 10,629,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471,105.60 : 18,712,879.20 = 7,083,892.80 : x
  2. Step 2: Convert to fraction form
    12,471,105.60/18,712,879.20 = 7,083,892.80/x
  3. Step 3: Cross multiply
    12,471,105.60x = 18,712,879.20 × 7,083,892.80
  4. Step 4: Simplify right side
    12,471,105.60x = 132,560,030,232,149.75
  5. Step 5: Solve for x
    x = 132,560,030,232,149.75/12,471,105.60
  6. Step 6: Final answer
    x = 10,629,372.77

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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.