Home / 12,619,716.82-18,932,121.71-3,985,165.62

Finding the Fourth Proportional to 12,619,716.82, 18,932,121.71 and 3,985,165.62

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Solution

The fourth proportional to 12,619,716.82, 18,932,121.71 and 3,985,165.62 is: 5,978,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619,716.82 : 18,932,121.71 = 3,985,165.62 : x
  2. Step 2: Convert to fraction form
    12,619,716.82/18,932,121.71 = 3,985,165.62/x
  3. Step 3: Cross multiply
    12,619,716.82x = 18,932,121.71 × 3,985,165.62
  4. Step 4: Simplify right side
    12,619,716.82x = 75,447,640,562,310.52
  5. Step 5: Solve for x
    x = 75,447,640,562,310.52/12,619,716.82
  6. Step 6: Final answer
    x = 5,978,552.58

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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.