Home / 443,234,138.70-664,851,208.05-259,568,129.10

Finding the Fourth Proportional to 443,234,138.70, 664,851,208.05 and 259,568,129.10

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Solution

The fourth proportional to 443,234,138.70, 664,851,208.05 and 259,568,129.10 is: 389,352,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,234,138.70 : 664,851,208.05 = 259,568,129.10 : x
  2. Step 2: Convert to fraction form
    443,234,138.70/664,851,208.05 = 259,568,129.10/x
  3. Step 3: Cross multiply
    443,234,138.70x = 664,851,208.05 × 259,568,129.10
  4. Step 4: Simplify right side
    443,234,138.70x = 172,574,184,203,413,344
  5. Step 5: Solve for x
    x = 172,574,184,203,413,344/443,234,138.70
  6. Step 6: Final answer
    x = 389,352,193.65

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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.