Home / 12,078,843.78-18,112,666.95-4,503,775.62

Finding the Fourth Proportional to 12,078,843.78, 18,112,666.95 and 4,503,775.62

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Solution

The fourth proportional to 12,078,843.78, 18,112,666.95 and 4,503,775.62 is: 6,753,575.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,843.78 : 18,112,666.95 = 4,503,775.62 : x
  2. Step 2: Convert to fraction form
    12,078,843.78/18,112,666.95 = 4,503,775.62/x
  3. Step 3: Cross multiply
    12,078,843.78x = 18,112,666.95 × 4,503,775.62
  4. Step 4: Simplify right side
    12,078,843.78x = 81,575,387,822,589.75
  5. Step 5: Solve for x
    x = 81,575,387,822,589.75/12,078,843.78
  6. Step 6: Final answer
    x = 6,753,575.86

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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.