Home / 12,169,679.60-16,793,491.92-6,661,989.20

Finding the Fourth Proportional to 12,169,679.60, 16,793,491.92 and 6,661,989.20

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Solution

The fourth proportional to 12,169,679.60, 16,793,491.92 and 6,661,989.20 is: 9,193,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169,679.60 : 16,793,491.92 = 6,661,989.20 : x
  2. Step 2: Convert to fraction form
    12,169,679.60/16,793,491.92 = 6,661,989.20/x
  3. Step 3: Cross multiply
    12,169,679.60x = 16,793,491.92 × 6,661,989.20
  4. Step 4: Simplify right side
    12,169,679.60x = 111,878,061,801,327.28
  5. Step 5: Solve for x
    x = 111,878,061,801,327.28/12,169,679.60
  6. Step 6: Final answer
    x = 9,193,180.55

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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.