Home / 18,682,711.80-28,024,067.70-8,605,015.80

Finding the Fourth Proportional to 18,682,711.80, 28,024,067.70 and 8,605,015.80

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Solution

The fourth proportional to 18,682,711.80, 28,024,067.70 and 8,605,015.80 is: 12,907,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,711.80 : 28,024,067.70 = 8,605,015.80 : x
  2. Step 2: Convert to fraction form
    18,682,711.80/28,024,067.70 = 8,605,015.80/x
  3. Step 3: Cross multiply
    18,682,711.80x = 28,024,067.70 × 8,605,015.80
  4. Step 4: Simplify right side
    18,682,711.80x = 241,147,545,338,769.69
  5. Step 5: Solve for x
    x = 241,147,545,338,769.69/18,682,711.80
  6. Step 6: Final answer
    x = 12,907,523.70

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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.