Home / 3,922,386.78-5,412,861.10-2,203,470.38

Finding the Fourth Proportional to 3,922,386.78, 5,412,861.10 and 2,203,470.38

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Solution

The fourth proportional to 3,922,386.78, 5,412,861.10 and 2,203,470.38 is: 3,040,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922,386.78 : 5,412,861.10 = 2,203,470.38 : x
  2. Step 2: Convert to fraction form
    3,922,386.78/5,412,861.10 = 2,203,470.38/x
  3. Step 3: Cross multiply
    3,922,386.78x = 5,412,861.10 × 2,203,470.38
  4. Step 4: Simplify right side
    3,922,386.78x = 11,927,079,104,904.22
  5. Step 5: Solve for x
    x = 11,927,079,104,904.22/3,922,386.78
  6. Step 6: Final answer
    x = 3,040,770.78

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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.