Home / 7,255,755.52-10,013,013.72-3,992,640.52

Finding the Fourth Proportional to 7,255,755.52, 10,013,013.72 and 3,992,640.52

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Solution

The fourth proportional to 7,255,755.52, 10,013,013.72 and 3,992,640.52 is: 5,509,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255,755.52 : 10,013,013.72 = 3,992,640.52 : x
  2. Step 2: Convert to fraction form
    7,255,755.52/10,013,013.72 = 3,992,640.52/x
  3. Step 3: Cross multiply
    7,255,755.52x = 10,013,013.72 × 3,992,640.52
  4. Step 4: Simplify right side
    7,255,755.52x = 39,978,364,305,787.94
  5. Step 5: Solve for x
    x = 39,978,364,305,787.94/7,255,755.52
  6. Step 6: Final answer
    x = 5,509,883.04

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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.