Home / 20,609,424.14-28,446,175.96-11,912,648.54

Finding the Fourth Proportional to 20,609,424.14, 28,446,175.96 and 11,912,648.54

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Solution

The fourth proportional to 20,609,424.14, 28,446,175.96 and 11,912,648.54 is: 16,442,443.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,424.14 : 28,446,175.96 = 11,912,648.54 : x
  2. Step 2: Convert to fraction form
    20,609,424.14/28,446,175.96 = 11,912,648.54/x
  3. Step 3: Cross multiply
    20,609,424.14x = 28,446,175.96 × 11,912,648.54
  4. Step 4: Simplify right side
    20,609,424.14x = 338,869,296,346,464.62
  5. Step 5: Solve for x
    x = 338,869,296,346,464.62/20,609,424.14
  6. Step 6: Final answer
    x = 16,442,443.72

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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.