Home / 5,180,638.67-7,149,156.12-2,857,481.29

Finding the Fourth Proportional to 5,180,638.67, 7,149,156.12 and 2,857,481.29

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Solution

The fourth proportional to 5,180,638.67, 7,149,156.12 and 2,857,481.29 is: 3,943,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,638.67 : 7,149,156.12 = 2,857,481.29 : x
  2. Step 2: Convert to fraction form
    5,180,638.67/7,149,156.12 = 2,857,481.29/x
  3. Step 3: Cross multiply
    5,180,638.67x = 7,149,156.12 × 2,857,481.29
  4. Step 4: Simplify right side
    5,180,638.67x = 20,428,579,874,530.11
  5. Step 5: Solve for x
    x = 20,428,579,874,530.11/5,180,638.67
  6. Step 6: Final answer
    x = 3,943,255.10

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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.