Home / 12,431,644.30-18,650,351.24-3,911,759.34

Finding the Fourth Proportional to 12,431,644.30, 18,650,351.24 and 3,911,759.34

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Solution

The fourth proportional to 12,431,644.30, 18,650,351.24 and 3,911,759.34 is: 5,868,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,644.30 : 18,650,351.24 = 3,911,759.34 : x
  2. Step 2: Convert to fraction form
    12,431,644.30/18,650,351.24 = 3,911,759.34/x
  3. Step 3: Cross multiply
    12,431,644.30x = 18,650,351.24 × 3,911,759.34
  4. Step 4: Simplify right side
    12,431,644.30x = 72,955,685,637,791.78
  5. Step 5: Solve for x
    x = 72,955,685,637,791.78/12,431,644.30
  6. Step 6: Final answer
    x = 5,868,546.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.