Home / 12,124,877.20-18,187,315.80-11,321,810.80

Finding the Fourth Proportional to 12,124,877.20, 18,187,315.80 and 11,321,810.80

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Solution

The fourth proportional to 12,124,877.20, 18,187,315.80 and 11,321,810.80 is: 16,982,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124,877.20 : 18,187,315.80 = 11,321,810.80 : x
  2. Step 2: Convert to fraction form
    12,124,877.20/18,187,315.80 = 11,321,810.80/x
  3. Step 3: Cross multiply
    12,124,877.20x = 18,187,315.80 × 11,321,810.80
  4. Step 4: Simplify right side
    12,124,877.20x = 205,913,348,447,450.66
  5. Step 5: Solve for x
    x = 205,913,348,447,450.66/12,124,877.20
  6. Step 6: Final answer
    x = 16,982,716.20

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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.