Home / 8,678,961.28-11,977,673.76-4,812,694.72

Finding the Fourth Proportional to 8,678,961.28, 11,977,673.76 and 4,812,694.72

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Solution

The fourth proportional to 8,678,961.28, 11,977,673.76 and 4,812,694.72 is: 6,641,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678,961.28 : 11,977,673.76 = 4,812,694.72 : x
  2. Step 2: Convert to fraction form
    8,678,961.28/11,977,673.76 = 4,812,694.72/x
  3. Step 3: Cross multiply
    8,678,961.28x = 11,977,673.76 × 4,812,694.72
  4. Step 4: Simplify right side
    8,678,961.28x = 57,644,887,262,634.55
  5. Step 5: Solve for x
    x = 57,644,887,262,634.55/8,678,961.28
  6. Step 6: Final answer
    x = 6,641,910.87

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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.