Home / 262,629,992.97-393,987,800.79-80,877,170.97

Finding the Fourth Proportional to 262,629,992.97, 393,987,800.79 and 80,877,170.97

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Solution

The fourth proportional to 262,629,992.97, 393,987,800.79 and 80,877,170.97 is: 121,328,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,629,992.97 : 393,987,800.79 = 80,877,170.97 : x
  2. Step 2: Convert to fraction form
    262,629,992.97/393,987,800.79 = 80,877,170.97/x
  3. Step 3: Cross multiply
    262,629,992.97x = 393,987,800.79 × 80,877,170.97
  4. Step 4: Simplify right side
    262,629,992.97x = 31,864,618,724,587,132
  5. Step 5: Solve for x
    x = 31,864,618,724,587,132/262,629,992.97
  6. Step 6: Final answer
    x = 121,328,940.25

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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.