Home / 766,601,998.20-1,149,902,997.30-548,923,764.60

Finding the Fourth Proportional to 766,601,998.20, 1,149,902,997.30 and 548,923,764.60

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Solution

The fourth proportional to 766,601,998.20, 1,149,902,997.30 and 548,923,764.60 is: 823,385,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,601,998.20 : 1,149,902,997.30 = 548,923,764.60 : x
  2. Step 2: Convert to fraction form
    766,601,998.20/1,149,902,997.30 = 548,923,764.60/x
  3. Step 3: Cross multiply
    766,601,998.20x = 1,149,902,997.30 × 548,923,764.60
  4. Step 4: Simplify right side
    766,601,998.20x = 631,209,082,202,739,584
  5. Step 5: Solve for x
    x = 631,209,082,202,739,584/766,601,998.20
  6. Step 6: Final answer
    x = 823,385,646.90

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Double scale
Find fourth proportional to 766,601,999.20, 1,149,902,998.80 and 548,923,765.60
Similar ratio
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1.5x scale

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.