Home / 20,763,057.13-28,444,912.34-19,986,780.49

Finding the Fourth Proportional to 20,763,057.13, 28,444,912.34 and 19,986,780.49

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Solution

The fourth proportional to 20,763,057.13, 28,444,912.34 and 19,986,780.49 is: 27,381,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,057.13 : 28,444,912.34 = 19,986,780.49 : x
  2. Step 2: Convert to fraction form
    20,763,057.13/28,444,912.34 = 19,986,780.49/x
  3. Step 3: Cross multiply
    20,763,057.13x = 28,444,912.34 × 19,986,780.49
  4. Step 4: Simplify right side
    20,763,057.13x = 568,522,218,996,872.25
  5. Step 5: Solve for x
    x = 568,522,218,996,872.25/20,763,057.13
  6. Step 6: Final answer
    x = 27,381,431.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.