Home / 69,987,194.64-104,971,575.12-20,801,997.96

Finding the Fourth Proportional to 69,987,194.64, 104,971,575.12 and 20,801,997.96

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Solution

The fourth proportional to 69,987,194.64, 104,971,575.12 and 20,801,997.96 is: 31,200,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,987,194.64 : 104,971,575.12 = 20,801,997.96 : x
  2. Step 2: Convert to fraction form
    69,987,194.64/104,971,575.12 = 20,801,997.96/x
  3. Step 3: Cross multiply
    69,987,194.64x = 104,971,575.12 × 20,801,997.96
  4. Step 4: Simplify right side
    69,987,194.64x = 2,183,618,491,504,227
  5. Step 5: Solve for x
    x = 2,183,618,491,504,227/69,987,194.64
  6. Step 6: Final answer
    x = 31,200,257.46

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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.