Home / 80,568,452.82-120,876,261.96-25,979,940.48

Finding the Fourth Proportional to 80,568,452.82, 120,876,261.96 and 25,979,940.48

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Solution

The fourth proportional to 80,568,452.82, 120,876,261.96 and 25,979,940.48 is: 38,977,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568,452.82 : 120,876,261.96 = 25,979,940.48 : x
  2. Step 2: Convert to fraction form
    80,568,452.82/120,876,261.96 = 25,979,940.48/x
  3. Step 3: Cross multiply
    80,568,452.82x = 120,876,261.96 × 25,979,940.48
  4. Step 4: Simplify right side
    80,568,452.82x = 3,140,358,091,165,688
  5. Step 5: Solve for x
    x = 3,140,358,091,165,688/80,568,452.82
  6. Step 6: Final answer
    x = 38,977,515.16

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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.