Home / 81,297,125.25-121,969,643.54-32,749,997.73

Finding the Fourth Proportional to 81,297,125.25, 121,969,643.54 and 32,749,997.73

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Solution

The fourth proportional to 81,297,125.25, 121,969,643.54 and 32,749,997.73 is: 49,134,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,297,125.25 : 121,969,643.54 = 32,749,997.73 : x
  2. Step 2: Convert to fraction form
    81,297,125.25/121,969,643.54 = 32,749,997.73/x
  3. Step 3: Cross multiply
    81,297,125.25x = 121,969,643.54 × 32,749,997.73
  4. Step 4: Simplify right side
    81,297,125.25x = 3,994,505,548,900,159
  5. Step 5: Solve for x
    x = 3,994,505,548,900,159/81,297,125.25
  6. Step 6: Final answer
    x = 49,134,646.97

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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.