Home / 21,551,281.92-29,741,463-12,258,613.80

Finding the Fourth Proportional to 21,551,281.92, 29,741,463 and 12,258,613.80

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Solution

The fourth proportional to 21,551,281.92, 29,741,463 and 12,258,613.80 is: 16,917,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551,281.92 : 29,741,463 = 12,258,613.80 : x
  2. Step 2: Convert to fraction form
    21,551,281.92/29,741,463 = 12,258,613.80/x
  3. Step 3: Cross multiply
    21,551,281.92x = 29,741,463 × 12,258,613.80
  4. Step 4: Simplify right side
    21,551,281.92x = 364,589,108,763,989.44
  5. Step 5: Solve for x
    x = 364,589,108,763,989.44/21,551,281.92
  6. Step 6: Final answer
    x = 16,917,281.77

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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.