Home / 82,095,902.20-123,143,853.30-80,820,443.80

Finding the Fourth Proportional to 82,095,902.20, 123,143,853.30 and 80,820,443.80

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Solution

The fourth proportional to 82,095,902.20, 123,143,853.30 and 80,820,443.80 is: 121,230,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,095,902.20 : 123,143,853.30 = 80,820,443.80 : x
  2. Step 2: Convert to fraction form
    82,095,902.20/123,143,853.30 = 80,820,443.80/x
  3. Step 3: Cross multiply
    82,095,902.20x = 123,143,853.30 × 80,820,443.80
  4. Step 4: Simplify right side
    82,095,902.20x = 9,952,540,874,948,094
  5. Step 5: Solve for x
    x = 9,952,540,874,948,094/82,095,902.20
  6. Step 6: Final answer
    x = 121,230,665.70

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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.