Home / 198,685,067.88-298,054,867.40-67,492,121.75

Finding the Fourth Proportional to 198,685,067.88, 298,054,867.40 and 67,492,121.75

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Solution

The fourth proportional to 198,685,067.88, 298,054,867.40 and 67,492,121.75 is: 101,247,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,685,067.88 : 298,054,867.40 = 67,492,121.75 : x
  2. Step 2: Convert to fraction form
    198,685,067.88/298,054,867.40 = 67,492,121.75/x
  3. Step 3: Cross multiply
    198,685,067.88x = 298,054,867.40 × 67,492,121.75
  4. Step 4: Simplify right side
    198,685,067.88x = 20,116,355,396,913,172
  5. Step 5: Solve for x
    x = 20,116,355,396,913,172/198,685,067.88
  6. Step 6: Final answer
    x = 101,247,444.57

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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.