Home / 20,372,705.82-28,114,865.92-11,205,589.14

Finding the Fourth Proportional to 20,372,705.82, 28,114,865.92 and 11,205,589.14

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Solution

The fourth proportional to 20,372,705.82, 28,114,865.92 and 11,205,589.14 is: 15,464,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,705.82 : 28,114,865.92 = 11,205,589.14 : x
  2. Step 2: Convert to fraction form
    20,372,705.82/28,114,865.92 = 11,205,589.14/x
  3. Step 3: Cross multiply
    20,372,705.82x = 28,114,865.92 × 11,205,589.14
  4. Step 4: Simplify right side
    20,372,705.82x = 315,043,636,225,708.12
  5. Step 5: Solve for x
    x = 315,043,636,225,708.12/20,372,705.82
  6. Step 6: Final answer
    x = 15,464,005.57

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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.