Home / 54,958,589.20-82,469,376.60-20,904,374.80

Finding the Fourth Proportional to 54,958,589.20, 82,469,376.60 and 20,904,374.80

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Solution

The fourth proportional to 54,958,589.20, 82,469,376.60 and 20,904,374.80 is: 31,368,540.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,958,589.20 : 82,469,376.60 = 20,904,374.80 : x
  2. Step 2: Convert to fraction form
    54,958,589.20/82,469,376.60 = 20,904,374.80/x
  3. Step 3: Cross multiply
    54,958,589.20x = 82,469,376.60 × 20,904,374.80
  4. Step 4: Simplify right side
    54,958,589.20x = 1,723,970,757,968,749.50
  5. Step 5: Solve for x
    x = 1,723,970,757,968,749.50/54,958,589.20
  6. Step 6: Final answer
    x = 31,368,540.99

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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.