Home / 279,936,369.40-419,904,554.10-251,718,820.60

Finding the Fourth Proportional to 279,936,369.40, 419,904,554.10 and 251,718,820.60

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Solution

The fourth proportional to 279,936,369.40, 419,904,554.10 and 251,718,820.60 is: 377,578,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,369.40 : 419,904,554.10 = 251,718,820.60 : x
  2. Step 2: Convert to fraction form
    279,936,369.40/419,904,554.10 = 251,718,820.60/x
  3. Step 3: Cross multiply
    279,936,369.40x = 419,904,554.10 × 251,718,820.60
  4. Step 4: Simplify right side
    279,936,369.40x = 105,697,879,122,620,896
  5. Step 5: Solve for x
    x = 105,697,879,122,620,896/279,936,369.40
  6. Step 6: Final answer
    x = 377,578,230.90

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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.