Home / 20,467,900.62-28,235,505.94-12,202,138.58

Finding the Fourth Proportional to 20,467,900.62, 28,235,505.94 and 12,202,138.58

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Solution

The fourth proportional to 20,467,900.62, 28,235,505.94 and 12,202,138.58 is: 16,832,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467,900.62 : 28,235,505.94 = 12,202,138.58 : x
  2. Step 2: Convert to fraction form
    20,467,900.62/28,235,505.94 = 12,202,138.58/x
  3. Step 3: Cross multiply
    20,467,900.62x = 28,235,505.94 × 12,202,138.58
  4. Step 4: Simplify right side
    20,467,900.62x = 344,533,556,356,293.19
  5. Step 5: Solve for x
    x = 344,533,556,356,293.19/20,467,900.62
  6. Step 6: Final answer
    x = 16,832,872.25

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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.