Home / 220,385,442.72-330,476,010.72-82,173,939.96

Finding the Fourth Proportional to 220,385,442.72, 330,476,010.72 and 82,173,939.96

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Solution

The fourth proportional to 220,385,442.72, 330,476,010.72 and 82,173,939.96 is: 123,222,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,385,442.72 : 330,476,010.72 = 82,173,939.96 : x
  2. Step 2: Convert to fraction form
    220,385,442.72/330,476,010.72 = 82,173,939.96/x
  3. Step 3: Cross multiply
    220,385,442.72x = 330,476,010.72 × 82,173,939.96
  4. Step 4: Simplify right side
    220,385,442.72x = 27,156,515,863,125,596
  5. Step 5: Solve for x
    x = 27,156,515,863,125,596/220,385,442.72
  6. Step 6: Final answer
    x = 123,222,820.56

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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.