Home / 3,922,387.78-5,412,862.48-2,203,471.38

Finding the Fourth Proportional to 3,922,387.78, 5,412,862.48 and 2,203,471.38

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Solution

The fourth proportional to 3,922,387.78, 5,412,862.48 and 2,203,471.38 is: 3,040,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922,387.78 : 5,412,862.48 = 2,203,471.38 : x
  2. Step 2: Convert to fraction form
    3,922,387.78/5,412,862.48 = 2,203,471.38/x
  3. Step 3: Cross multiply
    3,922,387.78x = 5,412,862.48 × 2,203,471.38
  4. Step 4: Simplify right side
    3,922,387.78x = 11,927,087,558,555.82
  5. Step 5: Solve for x
    x = 11,927,087,558,555.82/3,922,387.78
  6. Step 6: Final answer
    x = 3,040,772.16

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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.