Home / 305,910,747.20-422,156,891.94-166,681,508.96

Finding the Fourth Proportional to 305,910,747.20, 422,156,891.94 and 166,681,508.96

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Solution

The fourth proportional to 305,910,747.20, 422,156,891.94 and 166,681,508.96 is: 230,020,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,747.20 : 422,156,891.94 = 166,681,508.96 : x
  2. Step 2: Convert to fraction form
    305,910,747.20/422,156,891.94 = 166,681,508.96/x
  3. Step 3: Cross multiply
    305,910,747.20x = 422,156,891.94 × 166,681,508.96
  4. Step 4: Simplify right side
    305,910,747.20x = 70,365,747,766,422,864
  5. Step 5: Solve for x
    x = 70,365,747,766,422,864/305,910,747.20
  6. Step 6: Final answer
    x = 230,020,515.50

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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.