Home / 13,754,418.80-20,631,628.20-12,431,721.20

Finding the Fourth Proportional to 13,754,418.80, 20,631,628.20 and 12,431,721.20

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Solution

The fourth proportional to 13,754,418.80, 20,631,628.20 and 12,431,721.20 is: 18,647,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754,418.80 : 20,631,628.20 = 12,431,721.20 : x
  2. Step 2: Convert to fraction form
    13,754,418.80/20,631,628.20 = 12,431,721.20/x
  3. Step 3: Cross multiply
    13,754,418.80x = 20,631,628.20 × 12,431,721.20
  4. Step 4: Simplify right side
    13,754,418.80x = 256,486,649,684,457.81
  5. Step 5: Solve for x
    x = 256,486,649,684,457.81/13,754,418.80
  6. Step 6: Final answer
    x = 18,647,581.80

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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.