Home / 13,121,998.20-19,682,997.30-9,762,766.20

Finding the Fourth Proportional to 13,121,998.20, 19,682,997.30 and 9,762,766.20

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Solution

The fourth proportional to 13,121,998.20, 19,682,997.30 and 9,762,766.20 is: 14,644,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,998.20 : 19,682,997.30 = 9,762,766.20 : x
  2. Step 2: Convert to fraction form
    13,121,998.20/19,682,997.30 = 9,762,766.20/x
  3. Step 3: Cross multiply
    13,121,998.20x = 19,682,997.30 × 9,762,766.20
  4. Step 4: Simplify right side
    13,121,998.20x = 192,160,500,755,131.25
  5. Step 5: Solve for x
    x = 192,160,500,755,131.25/13,121,998.20
  6. Step 6: Final answer
    x = 14,644,149.30

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Similar ratio
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1.5x scale

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.