Home / 20,384,054.43-28,135,511.60-12,018,721.11

Finding the Fourth Proportional to 20,384,054.43, 28,135,511.60 and 12,018,721.11

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Solution

The fourth proportional to 20,384,054.43, 28,135,511.60 and 12,018,721.11 is: 16,589,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384,054.43 : 28,135,511.60 = 12,018,721.11 : x
  2. Step 2: Convert to fraction form
    20,384,054.43/28,135,511.60 = 12,018,721.11/x
  3. Step 3: Cross multiply
    20,384,054.43x = 28,135,511.60 × 12,018,721.11
  4. Step 4: Simplify right side
    20,384,054.43x = 338,152,867,207,569.88
  5. Step 5: Solve for x
    x = 338,152,867,207,569.88/20,384,054.43
  6. Step 6: Final answer
    x = 16,589,087.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.