Home / 511,144,190-766,443,493.20-265,253,241.68

Finding the Fourth Proportional to 511,144,190, 766,443,493.20 and 265,253,241.68

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Solution

The fourth proportional to 511,144,190, 766,443,493.20 and 265,253,241.68 is: 397,738,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,144,190 : 766,443,493.20 = 265,253,241.68 : x
  2. Step 2: Convert to fraction form
    511,144,190/766,443,493.20 = 265,253,241.68/x
  3. Step 3: Cross multiply
    511,144,190x = 766,443,493.20 × 265,253,241.68
  4. Step 4: Simplify right side
    511,144,190x = 203,301,621,135,843,040
  5. Step 5: Solve for x
    x = 203,301,621,135,843,040/511,144,190
  6. Step 6: Final answer
    x = 397,738,299.90

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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.