Home / 221,245,331.90-331,584,562.65-196,869,904.70

Finding the Fourth Proportional to 221,245,331.90, 331,584,562.65 and 196,869,904.70

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Solution

The fourth proportional to 221,245,331.90, 331,584,562.65 and 196,869,904.70 is: 295,052,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,245,331.90 : 331,584,562.65 = 196,869,904.70 : x
  2. Step 2: Convert to fraction form
    221,245,331.90/331,584,562.65 = 196,869,904.70/x
  3. Step 3: Cross multiply
    221,245,331.90x = 331,584,562.65 × 196,869,904.70
  4. Step 4: Simplify right side
    221,245,331.90x = 65,279,021,248,896,672
  5. Step 5: Solve for x
    x = 65,279,021,248,896,672/221,245,331.90
  6. Step 6: Final answer
    x = 295,052,648.97

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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.