Home / 408,978,035.20-613,467,052.80-236,365,998.40

Finding the Fourth Proportional to 408,978,035.20, 613,467,052.80 and 236,365,998.40

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Solution

The fourth proportional to 408,978,035.20, 613,467,052.80 and 236,365,998.40 is: 354,548,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,978,035.20 : 613,467,052.80 = 236,365,998.40 : x
  2. Step 2: Convert to fraction form
    408,978,035.20/613,467,052.80 = 236,365,998.40/x
  3. Step 3: Cross multiply
    408,978,035.20x = 613,467,052.80 × 236,365,998.40
  4. Step 4: Simplify right side
    408,978,035.20x = 145,002,752,420,577,504
  5. Step 5: Solve for x
    x = 145,002,752,420,577,504/408,978,035.20
  6. Step 6: Final answer
    x = 354,548,997.60

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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.