Home / 13,755,404.20-20,633,106.30-12,479,945.80

Finding the Fourth Proportional to 13,755,404.20, 20,633,106.30 and 12,479,945.80

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Solution

The fourth proportional to 13,755,404.20, 20,633,106.30 and 12,479,945.80 is: 18,719,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755,404.20 : 20,633,106.30 = 12,479,945.80 : x
  2. Step 2: Convert to fraction form
    13,755,404.20/20,633,106.30 = 12,479,945.80/x
  3. Step 3: Cross multiply
    13,755,404.20x = 20,633,106.30 × 12,479,945.80
  4. Step 4: Simplify right side
    13,755,404.20x = 257,500,048,309,638.56
  5. Step 5: Solve for x
    x = 257,500,048,309,638.56/13,755,404.20
  6. Step 6: Final answer
    x = 18,719,918.70

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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.