Home / 8,231,930.78-12,289,168.33-7,684,877.43

Finding the Fourth Proportional to 8,231,930.78, 12,289,168.33 and 7,684,877.43

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Solution

The fourth proportional to 8,231,930.78, 12,289,168.33 and 7,684,877.43 is: 11,472,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231,930.78 : 12,289,168.33 = 7,684,877.43 : x
  2. Step 2: Convert to fraction form
    8,231,930.78/12,289,168.33 = 7,684,877.43/x
  3. Step 3: Cross multiply
    8,231,930.78x = 12,289,168.33 × 7,684,877.43
  4. Step 4: Simplify right side
    8,231,930.78x = 94,440,752,313,475.59
  5. Step 5: Solve for x
    x = 94,440,752,313,475.59/8,231,930.78
  6. Step 6: Final answer
    x = 11,472,491.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.