Home / 20,469,721.14-30,571,868.16-18,546,790.41

Finding the Fourth Proportional to 20,469,721.14, 30,571,868.16 and 18,546,790.41

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Solution

The fourth proportional to 20,469,721.14, 30,571,868.16 and 18,546,790.41 is: 27,699,939.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469,721.14 : 30,571,868.16 = 18,546,790.41 : x
  2. Step 2: Convert to fraction form
    20,469,721.14/30,571,868.16 = 18,546,790.41/x
  3. Step 3: Cross multiply
    20,469,721.14x = 30,571,868.16 × 18,546,790.41
  4. Step 4: Simplify right side
    20,469,721.14x = 567,010,031,205,672.38
  5. Step 5: Solve for x
    x = 567,010,031,205,672.38/20,469,721.14
  6. Step 6: Final answer
    x = 27,699,939.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.