Home / 3,938,470.81-5,435,013.95-2,219,556.85

Finding the Fourth Proportional to 3,938,470.81, 5,435,013.95 and 2,219,556.85

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Solution

The fourth proportional to 3,938,470.81, 5,435,013.95 and 2,219,556.85 is: 3,062,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,470.81 : 5,435,013.95 = 2,219,556.85 : x
  2. Step 2: Convert to fraction form
    3,938,470.81/5,435,013.95 = 2,219,556.85/x
  3. Step 3: Cross multiply
    3,938,470.81x = 5,435,013.95 × 2,219,556.85
  4. Step 4: Simplify right side
    3,938,470.81x = 12,063,322,431,470.28
  5. Step 5: Solve for x
    x = 12,063,322,431,470.28/3,938,470.81
  6. Step 6: Final answer
    x = 3,062,945.75

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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.