Home / 221,435,999.70-332,153,999.55-205,311,686.10

Finding the Fourth Proportional to 221,435,999.70, 332,153,999.55 and 205,311,686.10

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Solution

The fourth proportional to 221,435,999.70, 332,153,999.55 and 205,311,686.10 is: 307,967,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,435,999.70 : 332,153,999.55 = 205,311,686.10 : x
  2. Step 2: Convert to fraction form
    221,435,999.70/332,153,999.55 = 205,311,686.10/x
  3. Step 3: Cross multiply
    221,435,999.70x = 332,153,999.55 × 205,311,686.10
  4. Step 4: Simplify right side
    221,435,999.70x = 68,195,097,692,469,144
  5. Step 5: Solve for x
    x = 68,195,097,692,469,144/221,435,999.70
  6. Step 6: Final answer
    x = 307,967,529.15

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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.