Home / 11,327,791.20-16,991,686.80-8,162,764.80

Finding the Fourth Proportional to 11,327,791.20, 16,991,686.80 and 8,162,764.80

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Solution

The fourth proportional to 11,327,791.20, 16,991,686.80 and 8,162,764.80 is: 12,244,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327,791.20 : 16,991,686.80 = 8,162,764.80 : x
  2. Step 2: Convert to fraction form
    11,327,791.20/16,991,686.80 = 8,162,764.80/x
  3. Step 3: Cross multiply
    11,327,791.20x = 16,991,686.80 × 8,162,764.80
  4. Step 4: Simplify right side
    11,327,791.20x = 138,699,142,903,664.64
  5. Step 5: Solve for x
    x = 138,699,142,903,664.64/11,327,791.20
  6. Step 6: Final answer
    x = 12,244,147.20

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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.