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Finding the Fourth Proportional to 199,701,999.70, 299,552,999.55 and 192,049,249.30

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Solution

The fourth proportional to 199,701,999.70, 299,552,999.55 and 192,049,249.30 is: 288,073,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,701,999.70 : 299,552,999.55 = 192,049,249.30 : x
  2. Step 2: Convert to fraction form
    199,701,999.70/299,552,999.55 = 192,049,249.30/x
  3. Step 3: Cross multiply
    199,701,999.70x = 299,552,999.55 × 192,049,249.30
  4. Step 4: Simplify right side
    199,701,999.70x = 57,528,928,689,140,744
  5. Step 5: Solve for x
    x = 57,528,928,689,140,744/199,701,999.70
  6. Step 6: Final answer
    x = 288,073,873.95

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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.