Home / 798,848,002.20-1,198,272,003.30-389,693,544.60

Finding the Fourth Proportional to 798,848,002.20, 1,198,272,003.30 and 389,693,544.60

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Solution

The fourth proportional to 798,848,002.20, 1,198,272,003.30 and 389,693,544.60 is: 584,540,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,848,002.20 : 1,198,272,003.30 = 389,693,544.60 : x
  2. Step 2: Convert to fraction form
    798,848,002.20/1,198,272,003.30 = 389,693,544.60/x
  3. Step 3: Cross multiply
    798,848,002.20x = 1,198,272,003.30 × 389,693,544.60
  4. Step 4: Simplify right side
    798,848,002.20x = 466,958,864,360,919,936
  5. Step 5: Solve for x
    x = 466,958,864,360,919,936/798,848,002.20
  6. Step 6: Final answer
    x = 584,540,316.90

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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.