Home / 422,451,577.20-633,677,365.80-320,414,905.20

Finding the Fourth Proportional to 422,451,577.20, 633,677,365.80 and 320,414,905.20

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Solution

The fourth proportional to 422,451,577.20, 633,677,365.80 and 320,414,905.20 is: 480,622,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,451,577.20 : 633,677,365.80 = 320,414,905.20 : x
  2. Step 2: Convert to fraction form
    422,451,577.20/633,677,365.80 = 320,414,905.20/x
  3. Step 3: Cross multiply
    422,451,577.20x = 633,677,365.80 × 320,414,905.20
  4. Step 4: Simplify right side
    422,451,577.20x = 203,039,673,090,192,704
  5. Step 5: Solve for x
    x = 203,039,673,090,192,704/422,451,577.20
  6. Step 6: Final answer
    x = 480,622,357.80

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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.