Home / 198,587,103.78-274,052,725.26-109,289,329.32

Finding the Fourth Proportional to 198,587,103.78, 274,052,725.26 and 109,289,329.32

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Solution

The fourth proportional to 198,587,103.78, 274,052,725.26 and 109,289,329.32 is: 150,820,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,587,103.78 : 274,052,725.26 = 109,289,329.32 : x
  2. Step 2: Convert to fraction form
    198,587,103.78/274,052,725.26 = 109,289,329.32/x
  3. Step 3: Cross multiply
    198,587,103.78x = 274,052,725.26 × 109,289,329.32
  4. Step 4: Simplify right side
    198,587,103.78x = 29,951,038,541,983,620
  5. Step 5: Solve for x
    x = 29,951,038,541,983,620/198,587,103.78
  6. Step 6: Final answer
    x = 150,820,662.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.