Home / 419,904,429.70-629,856,644.55-113,227,543.30

Finding the Fourth Proportional to 419,904,429.70, 629,856,644.55 and 113,227,543.30

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Solution

The fourth proportional to 419,904,429.70, 629,856,644.55 and 113,227,543.30 is: 169,841,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,429.70 : 629,856,644.55 = 113,227,543.30 : x
  2. Step 2: Convert to fraction form
    419,904,429.70/629,856,644.55 = 113,227,543.30/x
  3. Step 3: Cross multiply
    419,904,429.70x = 629,856,644.55 × 113,227,543.30
  4. Step 4: Simplify right side
    419,904,429.70x = 71,317,120,493,577,824
  5. Step 5: Solve for x
    x = 71,317,120,493,577,824/419,904,429.70
  6. Step 6: Final answer
    x = 169,841,314.95

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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.