Home / 20,682,712.62-28,541,050.45-11,861,708.03

Finding the Fourth Proportional to 20,682,712.62, 28,541,050.45 and 11,861,708.03

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Solution

The fourth proportional to 20,682,712.62, 28,541,050.45 and 11,861,708.03 is: 16,368,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682,712.62 : 28,541,050.45 = 11,861,708.03 : x
  2. Step 2: Convert to fraction form
    20,682,712.62/28,541,050.45 = 11,861,708.03/x
  3. Step 3: Cross multiply
    20,682,712.62x = 28,541,050.45 × 11,861,708.03
  4. Step 4: Simplify right side
    20,682,712.62x = 338,545,607,248,091.56
  5. Step 5: Solve for x
    x = 338,545,607,248,091.56/20,682,712.62
  6. Step 6: Final answer
    x = 16,368,530.25

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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.