Home / 279,936,333.20-419,904,499.80-259,528,998.80

Finding the Fourth Proportional to 279,936,333.20, 419,904,499.80 and 259,528,998.80

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Solution

The fourth proportional to 279,936,333.20, 419,904,499.80 and 259,528,998.80 is: 389,293,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,333.20 : 419,904,499.80 = 259,528,998.80 : x
  2. Step 2: Convert to fraction form
    279,936,333.20/419,904,499.80 = 259,528,998.80/x
  3. Step 3: Cross multiply
    279,936,333.20x = 419,904,499.80 × 259,528,998.80
  4. Step 4: Simplify right side
    279,936,333.20x = 108,977,394,424,708,816
  5. Step 5: Solve for x
    x = 108,977,394,424,708,816/279,936,333.20
  6. Step 6: Final answer
    x = 389,293,498.20

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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.