Home / 6,640,442.88-9,168,042.27-5,419,660.40

Finding the Fourth Proportional to 6,640,442.88, 9,168,042.27 and 5,419,660.40

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Solution

The fourth proportional to 6,640,442.88, 9,168,042.27 and 5,419,660.40 is: 7,482,584.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,442.88 : 9,168,042.27 = 5,419,660.40 : x
  2. Step 2: Convert to fraction form
    6,640,442.88/9,168,042.27 = 5,419,660.40/x
  3. Step 3: Cross multiply
    6,640,442.88x = 9,168,042.27 × 5,419,660.40
  4. Step 4: Simplify right side
    6,640,442.88x = 49,687,675,619,323.66
  5. Step 5: Solve for x
    x = 49,687,675,619,323.66/6,640,442.88
  6. Step 6: Final answer
    x = 7,482,584.59

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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.