Home / 54,431,998.80-81,647,998.20-30,494,360.40

Finding the Fourth Proportional to 54,431,998.80, 81,647,998.20 and 30,494,360.40

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Solution

The fourth proportional to 54,431,998.80, 81,647,998.20 and 30,494,360.40 is: 45,741,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431,998.80 : 81,647,998.20 = 30,494,360.40 : x
  2. Step 2: Convert to fraction form
    54,431,998.80/81,647,998.20 = 30,494,360.40/x
  3. Step 3: Cross multiply
    54,431,998.80x = 81,647,998.20 × 30,494,360.40
  4. Step 4: Simplify right side
    54,431,998.80x = 2,489,803,483,049,351
  5. Step 5: Solve for x
    x = 2,489,803,483,049,351/54,431,998.80
  6. Step 6: Final answer
    x = 45,741,540.60

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1.5x scale

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.