Home / 419,904,491.20-629,856,736.80-304,346,910.40

Finding the Fourth Proportional to 419,904,491.20, 629,856,736.80 and 304,346,910.40

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Solution

The fourth proportional to 419,904,491.20, 629,856,736.80 and 304,346,910.40 is: 456,520,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,491.20 : 629,856,736.80 = 304,346,910.40 : x
  2. Step 2: Convert to fraction form
    419,904,491.20/629,856,736.80 = 304,346,910.40/x
  3. Step 3: Cross multiply
    419,904,491.20x = 629,856,736.80 × 304,346,910.40
  4. Step 4: Simplify right side
    419,904,491.20x = 191,694,951,839,705,952
  5. Step 5: Solve for x
    x = 191,694,951,839,705,952/419,904,491.20
  6. Step 6: Final answer
    x = 456,520,365.60

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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.