Home / 8,120,636.88-11,218,610.88-5,336,342.88

Finding the Fourth Proportional to 8,120,636.88, 11,218,610.88 and 5,336,342.88

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Solution

The fourth proportional to 8,120,636.88, 11,218,610.88 and 5,336,342.88 is: 7,372,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120,636.88 : 11,218,610.88 = 5,336,342.88 : x
  2. Step 2: Convert to fraction form
    8,120,636.88/11,218,610.88 = 5,336,342.88/x
  3. Step 3: Cross multiply
    8,120,636.88x = 11,218,610.88 × 5,336,342.88
  4. Step 4: Simplify right side
    8,120,636.88x = 59,866,354,292,978.54
  5. Step 5: Solve for x
    x = 59,866,354,292,978.54/8,120,636.88
  6. Step 6: Final answer
    x = 7,372,125.51

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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.