Home / 13,752,829.20-20,629,243.80-12,382,892.40

Finding the Fourth Proportional to 13,752,829.20, 20,629,243.80 and 12,382,892.40

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Solution

The fourth proportional to 13,752,829.20, 20,629,243.80 and 12,382,892.40 is: 18,574,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752,829.20 : 20,629,243.80 = 12,382,892.40 : x
  2. Step 2: Convert to fraction form
    13,752,829.20/20,629,243.80 = 12,382,892.40/x
  3. Step 3: Cross multiply
    13,752,829.20x = 20,629,243.80 × 12,382,892.40
  4. Step 4: Simplify right side
    13,752,829.20x = 255,449,706,268,767.12
  5. Step 5: Solve for x
    x = 255,449,706,268,767.12/13,752,829.20
  6. Step 6: Final answer
    x = 18,574,338.60

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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.