Home / 3,927,018.78-5,419,087.92-2,208,036.78

Finding the Fourth Proportional to 3,927,018.78, 5,419,087.92 and 2,208,036.78

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Solution

The fourth proportional to 3,927,018.78, 5,419,087.92 and 2,208,036.78 is: 3,046,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927,018.78 : 5,419,087.92 = 2,208,036.78 : x
  2. Step 2: Convert to fraction form
    3,927,018.78/5,419,087.92 = 2,208,036.78/x
  3. Step 3: Cross multiply
    3,927,018.78x = 5,419,087.92 × 2,208,036.78
  4. Step 4: Simplify right side
    3,927,018.78x = 11,965,545,441,413.70
  5. Step 5: Solve for x
    x = 11,965,545,441,413.70/3,927,018.78
  6. Step 6: Final answer
    x = 3,046,979.43

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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.