Home / 299,654,195.80-449,511,231.30-81,308,003.80

Finding the Fourth Proportional to 299,654,195.80, 449,511,231.30 and 81,308,003.80

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Solution

The fourth proportional to 299,654,195.80, 449,511,231.30 and 81,308,003.80 is: 121,970,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,654,195.80 : 449,511,231.30 = 81,308,003.80 : x
  2. Step 2: Convert to fraction form
    299,654,195.80/449,511,231.30 = 81,308,003.80/x
  3. Step 3: Cross multiply
    299,654,195.80x = 449,511,231.30 × 81,308,003.80
  4. Step 4: Simplify right side
    299,654,195.80x = 36,548,860,902,683,080
  5. Step 5: Solve for x
    x = 36,548,860,902,683,080/299,654,195.80
  6. Step 6: Final answer
    x = 121,970,128.95

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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.