Home / 221,474,809.40-332,180,721.30-75,915,087.80

Finding the Fourth Proportional to 221,474,809.40, 332,180,721.30 and 75,915,087.80

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Solution

The fourth proportional to 221,474,809.40, 332,180,721.30 and 75,915,087.80 is: 113,861,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,474,809.40 : 332,180,721.30 = 75,915,087.80 : x
  2. Step 2: Convert to fraction form
    221,474,809.40/332,180,721.30 = 75,915,087.80/x
  3. Step 3: Cross multiply
    221,474,809.40x = 332,180,721.30 × 75,915,087.80
  4. Step 4: Simplify right side
    221,474,809.40x = 25,217,528,622,956,832
  5. Step 5: Solve for x
    x = 25,217,528,622,956,832/221,474,809.40
  6. Step 6: Final answer
    x = 113,861,836.89

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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.