Home / 3,939,103.41-5,440,446.73-2,647,701.78

Finding the Fourth Proportional to 3,939,103.41, 5,440,446.73 and 2,647,701.78

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Solution

The fourth proportional to 3,939,103.41, 5,440,446.73 and 2,647,701.78 is: 3,656,842.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,103.41 : 5,440,446.73 = 2,647,701.78 : x
  2. Step 2: Convert to fraction form
    3,939,103.41/5,440,446.73 = 2,647,701.78/x
  3. Step 3: Cross multiply
    3,939,103.41x = 5,440,446.73 × 2,647,701.78
  4. Step 4: Simplify right side
    3,939,103.41x = 14,404,680,477,777.67
  5. Step 5: Solve for x
    x = 14,404,680,477,777.67/3,939,103.41
  6. Step 6: Final answer
    x = 3,656,842.43

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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.