Home / 49,419,554.09-74,162,821.26-20,278,661.40

Finding the Fourth Proportional to 49,419,554.09, 74,162,821.26 and 20,278,661.40

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Solution

The fourth proportional to 49,419,554.09, 74,162,821.26 and 20,278,661.40 is: 30,431,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,419,554.09 : 74,162,821.26 = 20,278,661.40 : x
  2. Step 2: Convert to fraction form
    49,419,554.09/74,162,821.26 = 20,278,661.40/x
  3. Step 3: Cross multiply
    49,419,554.09x = 74,162,821.26 × 20,278,661.40
  4. Step 4: Simplify right side
    49,419,554.09x = 1,503,922,740,800,261.25
  5. Step 5: Solve for x
    x = 1,503,922,740,800,261.25/49,419,554.09
  6. Step 6: Final answer
    x = 30,431,734.33

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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.