Home / 12,231,100.20-16,878,928.68-6,724,568.40

Finding the Fourth Proportional to 12,231,100.20, 16,878,928.68 and 6,724,568.40

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Solution

The fourth proportional to 12,231,100.20, 16,878,928.68 and 6,724,568.40 is: 9,279,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231,100.20 : 16,878,928.68 = 6,724,568.40 : x
  2. Step 2: Convert to fraction form
    12,231,100.20/16,878,928.68 = 6,724,568.40/x
  3. Step 3: Cross multiply
    12,231,100.20x = 16,878,928.68 × 6,724,568.40
  4. Step 4: Simplify right side
    12,231,100.20x = 113,503,510,427,381.72
  5. Step 5: Solve for x
    x = 113,503,510,427,381.72/12,231,100.20
  6. Step 6: Final answer
    x = 9,279,910.11

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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.