Home / 419,906,983.60-629,860,475.40-265,718,234.80

Finding the Fourth Proportional to 419,906,983.60, 629,860,475.40 and 265,718,234.80

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Solution

The fourth proportional to 419,906,983.60, 629,860,475.40 and 265,718,234.80 is: 398,577,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,983.60 : 629,860,475.40 = 265,718,234.80 : x
  2. Step 2: Convert to fraction form
    419,906,983.60/629,860,475.40 = 265,718,234.80/x
  3. Step 3: Cross multiply
    419,906,983.60x = 629,860,475.40 × 265,718,234.80
  4. Step 4: Simplify right side
    419,906,983.60x = 167,365,413,693,576,832
  5. Step 5: Solve for x
    x = 167,365,413,693,576,832/419,906,983.60
  6. Step 6: Final answer
    x = 398,577,352.20

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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.