Home / 12,142,571.20-18,185,863.20-11,862,635.20

Finding the Fourth Proportional to 12,142,571.20, 18,185,863.20 and 11,862,635.20

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Solution

The fourth proportional to 12,142,571.20, 18,185,863.20 and 11,862,635.20 is: 17,766,604.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142,571.20 : 18,185,863.20 = 11,862,635.20 : x
  2. Step 2: Convert to fraction form
    12,142,571.20/18,185,863.20 = 11,862,635.20/x
  3. Step 3: Cross multiply
    12,142,571.20x = 18,185,863.20 × 11,862,635.20
  4. Step 4: Simplify right side
    12,142,571.20x = 215,732,260,938,704.62
  5. Step 5: Solve for x
    x = 215,732,260,938,704.62/12,142,571.20
  6. Step 6: Final answer
    x = 17,766,604.57

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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.