Home / 391,796,185.57-587,512,672.60-146,086,847.28

Finding the Fourth Proportional to 391,796,185.57, 587,512,672.60 and 146,086,847.28

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Solution

The fourth proportional to 391,796,185.57, 587,512,672.60 and 146,086,847.28 is: 219,062,556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,796,185.57 : 587,512,672.60 = 146,086,847.28 : x
  2. Step 2: Convert to fraction form
    391,796,185.57/587,512,672.60 = 146,086,847.28/x
  3. Step 3: Cross multiply
    391,796,185.57x = 587,512,672.60 × 146,086,847.28
  4. Step 4: Simplify right side
    391,796,185.57x = 85,827,874,074,243,280
  5. Step 5: Solve for x
    x = 85,827,874,074,243,280/391,796,185.57
  6. Step 6: Final answer
    x = 219,062,556.59

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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.