Home / 20,498,760.41-28,288,625.64-12,239,544.38

Finding the Fourth Proportional to 20,498,760.41, 28,288,625.64 and 12,239,544.38

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Solution

The fourth proportional to 20,498,760.41, 28,288,625.64 and 12,239,544.38 is: 16,890,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498,760.41 : 28,288,625.64 = 12,239,544.38 : x
  2. Step 2: Convert to fraction form
    20,498,760.41/28,288,625.64 = 12,239,544.38/x
  3. Step 3: Cross multiply
    20,498,760.41x = 28,288,625.64 × 12,239,544.38
  4. Step 4: Simplify right side
    20,498,760.41x = 346,239,888,969,985.94
  5. Step 5: Solve for x
    x = 346,239,888,969,985.94/20,498,760.41
  6. Step 6: Final answer
    x = 16,890,772.03

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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.