Home / 543,213,169.80-815,032,331.10-198,201,672.60

Finding the Fourth Proportional to 543,213,169.80, 815,032,331.10 and 198,201,672.60

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Solution

The fourth proportional to 543,213,169.80, 815,032,331.10 and 198,201,672.60 is: 297,380,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,213,169.80 : 815,032,331.10 = 198,201,672.60 : x
  2. Step 2: Convert to fraction form
    543,213,169.80/815,032,331.10 = 198,201,672.60/x
  3. Step 3: Cross multiply
    543,213,169.80x = 815,032,331.10 × 198,201,672.60
  4. Step 4: Simplify right side
    543,213,169.80x = 161,540,771,247,096,992
  5. Step 5: Solve for x
    x = 161,540,771,247,096,992/543,213,169.80
  6. Step 6: Final answer
    x = 297,380,071.45

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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.