Home / 54,917,385.06-82,373,415.36-20,380,519.80

Finding the Fourth Proportional to 54,917,385.06, 82,373,415.36 and 20,380,519.80

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Solution

The fourth proportional to 54,917,385.06, 82,373,415.36 and 20,380,519.80 is: 30,569,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,917,385.06 : 82,373,415.36 = 20,380,519.80 : x
  2. Step 2: Convert to fraction form
    54,917,385.06/82,373,415.36 = 20,380,519.80/x
  3. Step 3: Cross multiply
    54,917,385.06x = 82,373,415.36 × 20,380,519.80
  4. Step 4: Simplify right side
    54,917,385.06x = 1,678,813,022,738,104.25
  5. Step 5: Solve for x
    x = 1,678,813,022,738,104.25/54,917,385.06
  6. Step 6: Final answer
    x = 30,569,791.71

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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.