Home / 12,078,891.78-18,112,738.95-4,503,823.62

Finding the Fourth Proportional to 12,078,891.78, 18,112,738.95 and 4,503,823.62

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Solution

The fourth proportional to 12,078,891.78, 18,112,738.95 and 4,503,823.62 is: 6,753,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,891.78 : 18,112,738.95 = 4,503,823.62 : x
  2. Step 2: Convert to fraction form
    12,078,891.78/18,112,738.95 = 4,503,823.62/x
  3. Step 3: Cross multiply
    12,078,891.78x = 18,112,738.95 × 4,503,823.62
  4. Step 4: Simplify right side
    12,078,891.78x = 81,576,581,505,904
  5. Step 5: Solve for x
    x = 81,576,581,505,904/12,078,891.78
  6. Step 6: Final answer
    x = 6,753,647.85

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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.