Home / 220,187,965.89-330,410,740.21-82,108,965.27

Finding the Fourth Proportional to 220,187,965.89, 330,410,740.21 and 82,108,965.27

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Solution

The fourth proportional to 220,187,965.89, 330,410,740.21 and 82,108,965.27 is: 123,211,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,187,965.89 : 330,410,740.21 = 82,108,965.27 : x
  2. Step 2: Convert to fraction form
    220,187,965.89/330,410,740.21 = 82,108,965.27/x
  3. Step 3: Cross multiply
    220,187,965.89x = 330,410,740.21 × 82,108,965.27
  4. Step 4: Simplify right side
    220,187,965.89x = 27,129,683,992,737,880
  5. Step 5: Solve for x
    x = 27,129,683,992,737,880/220,187,965.89
  6. Step 6: Final answer
    x = 123,211,474.72

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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.