Home / 81,297,126.25-121,969,645.04-32,749,998.73

Finding the Fourth Proportional to 81,297,126.25, 121,969,645.04 and 32,749,998.73

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Solution

The fourth proportional to 81,297,126.25, 121,969,645.04 and 32,749,998.73 is: 49,134,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,297,126.25 : 121,969,645.04 = 32,749,998.73 : x
  2. Step 2: Convert to fraction form
    81,297,126.25/121,969,645.04 = 32,749,998.73/x
  3. Step 3: Cross multiply
    81,297,126.25x = 121,969,645.04 × 32,749,998.73
  4. Step 4: Simplify right side
    81,297,126.25x = 3,994,505,720,158,551
  5. Step 5: Solve for x
    x = 3,994,505,720,158,551/81,297,126.25
  6. Step 6: Final answer
    x = 49,134,648.47

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Double scale
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1.5x scale

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.