Home / 13,666,876.20-20,500,314.30-8,640,469.80

Finding the Fourth Proportional to 13,666,876.20, 20,500,314.30 and 8,640,469.80

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Solution

The fourth proportional to 13,666,876.20, 20,500,314.30 and 8,640,469.80 is: 12,960,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666,876.20 : 20,500,314.30 = 8,640,469.80 : x
  2. Step 2: Convert to fraction form
    13,666,876.20/20,500,314.30 = 8,640,469.80/x
  3. Step 3: Cross multiply
    13,666,876.20x = 20,500,314.30 × 8,640,469.80
  4. Step 4: Simplify right side
    13,666,876.20x = 177,132,346,599,658.16
  5. Step 5: Solve for x
    x = 177,132,346,599,658.16/13,666,876.20
  6. Step 6: Final answer
    x = 12,960,704.70

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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.