Home / 12,910,525.20-17,816,648.22-7,109,512.56

Finding the Fourth Proportional to 12,910,525.20, 17,816,648.22 and 7,109,512.56

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Solution

The fourth proportional to 12,910,525.20, 17,816,648.22 and 7,109,512.56 is: 9,811,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910,525.20 : 17,816,648.22 = 7,109,512.56 : x
  2. Step 2: Convert to fraction form
    12,910,525.20/17,816,648.22 = 7,109,512.56/x
  3. Step 3: Cross multiply
    12,910,525.20x = 17,816,648.22 × 7,109,512.56
  4. Step 4: Simplify right side
    12,910,525.20x = 126,667,684,297,191.62
  5. Step 5: Solve for x
    x = 126,667,684,297,191.62/12,910,525.20
  6. Step 6: Final answer
    x = 9,811,195.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.