Home / 8,326,072.72-11,491,900.68-5,420,404

Finding the Fourth Proportional to 8,326,072.72, 11,491,900.68 and 5,420,404

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Solution

The fourth proportional to 8,326,072.72, 11,491,900.68 and 5,420,404 is: 7,481,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326,072.72 : 11,491,900.68 = 5,420,404 : x
  2. Step 2: Convert to fraction form
    8,326,072.72/11,491,900.68 = 5,420,404/x
  3. Step 3: Cross multiply
    8,326,072.72x = 11,491,900.68 × 5,420,404
  4. Step 4: Simplify right side
    8,326,072.72x = 62,290,744,413,474.72
  5. Step 5: Solve for x
    x = 62,290,744,413,474.72/8,326,072.72
  6. Step 6: Final answer
    x = 7,481,407.68

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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.