Home / 12,255,540.40-18,383,310.60-7,472,571.40

Finding the Fourth Proportional to 12,255,540.40, 18,383,310.60 and 7,472,571.40

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Solution

The fourth proportional to 12,255,540.40, 18,383,310.60 and 7,472,571.40 is: 11,208,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,540.40 : 18,383,310.60 = 7,472,571.40 : x
  2. Step 2: Convert to fraction form
    12,255,540.40/18,383,310.60 = 7,472,571.40/x
  3. Step 3: Cross multiply
    12,255,540.40x = 18,383,310.60 × 7,472,571.40
  4. Step 4: Simplify right side
    12,255,540.40x = 137,370,601,026,876.86
  5. Step 5: Solve for x
    x = 137,370,601,026,876.86/12,255,540.40
  6. Step 6: Final answer
    x = 11,208,857.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.