Home / 279,936,346.90-419,904,520.35-275,401,383.70

Finding the Fourth Proportional to 279,936,346.90, 419,904,520.35 and 275,401,383.70

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Solution

The fourth proportional to 279,936,346.90, 419,904,520.35 and 275,401,383.70 is: 413,102,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,346.90 : 419,904,520.35 = 275,401,383.70 : x
  2. Step 2: Convert to fraction form
    279,936,346.90/419,904,520.35 = 275,401,383.70/x
  3. Step 3: Cross multiply
    279,936,346.90x = 419,904,520.35 × 275,401,383.70
  4. Step 4: Simplify right side
    279,936,346.90x = 115,642,285,926,274,816
  5. Step 5: Solve for x
    x = 115,642,285,926,274,816/279,936,346.90
  6. Step 6: Final answer
    x = 413,102,075.55

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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.