Home / 20,647,936.35-28,494,879.71-11,828,960.91

Finding the Fourth Proportional to 20,647,936.35, 28,494,879.71 and 11,828,960.91

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Solution

The fourth proportional to 20,647,936.35, 28,494,879.71 and 11,828,960.91 is: 16,324,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,936.35 : 28,494,879.71 = 11,828,960.91 : x
  2. Step 2: Convert to fraction form
    20,647,936.35/28,494,879.71 = 11,828,960.91/x
  3. Step 3: Cross multiply
    20,647,936.35x = 28,494,879.71 × 11,828,960.91
  4. Step 4: Simplify right side
    20,647,936.35x = 337,064,818,165,597.31
  5. Step 5: Solve for x
    x = 337,064,818,165,597.31/20,647,936.35
  6. Step 6: Final answer
    x = 16,324,382.86

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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.