Home / 13,383,640.32-18,469,536-7,272,068.64

Finding the Fourth Proportional to 13,383,640.32, 18,469,536 and 7,272,068.64

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Solution

The fourth proportional to 13,383,640.32, 18,469,536 and 7,272,068.64 is: 10,035,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383,640.32 : 18,469,536 = 7,272,068.64 : x
  2. Step 2: Convert to fraction form
    13,383,640.32/18,469,536 = 7,272,068.64/x
  3. Step 3: Cross multiply
    13,383,640.32x = 18,469,536 × 7,272,068.64
  4. Step 4: Simplify right side
    13,383,640.32x = 134,311,733,540,951.03
  5. Step 5: Solve for x
    x = 134,311,733,540,951.03/13,383,640.32
  6. Step 6: Final answer
    x = 10,035,515.77

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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.