Home / 11,131,146.80-16,661,290.80-7,942,500.80

Finding the Fourth Proportional to 11,131,146.80, 16,661,290.80 and 7,942,500.80

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Solution

The fourth proportional to 11,131,146.80, 16,661,290.80 and 7,942,500.80 is: 11,888,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131,146.80 : 16,661,290.80 = 7,942,500.80 : x
  2. Step 2: Convert to fraction form
    11,131,146.80/16,661,290.80 = 7,942,500.80/x
  3. Step 3: Cross multiply
    11,131,146.80x = 16,661,290.80 × 7,942,500.80
  4. Step 4: Simplify right side
    11,131,146.80x = 132,332,315,508,032.64
  5. Step 5: Solve for x
    x = 132,332,315,508,032.64/11,131,146.80
  6. Step 6: Final answer
    x = 11,888,470.96

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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.