Home / 443,233,998.20-664,850,997.30-259,567,988.60

Finding the Fourth Proportional to 443,233,998.20, 664,850,997.30 and 259,567,988.60

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Solution

The fourth proportional to 443,233,998.20, 664,850,997.30 and 259,567,988.60 is: 389,351,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,233,998.20 : 664,850,997.30 = 259,567,988.60 : x
  2. Step 2: Convert to fraction form
    443,233,998.20/664,850,997.30 = 259,567,988.60/x
  3. Step 3: Cross multiply
    443,233,998.20x = 664,850,997.30 × 259,567,988.60
  4. Step 4: Simplify right side
    443,233,998.20x = 172,574,036,087,865,024
  5. Step 5: Solve for x
    x = 172,574,036,087,865,024/443,233,998.20
  6. Step 6: Final answer
    x = 389,351,982.90

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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.