Home / 419,904,607.35-629,856,911.03-189,881,196.15

Finding the Fourth Proportional to 419,904,607.35, 629,856,911.03 and 189,881,196.15

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Solution

The fourth proportional to 419,904,607.35, 629,856,911.03 and 189,881,196.15 is: 284,821,794.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,607.35 : 629,856,911.03 = 189,881,196.15 : x
  2. Step 2: Convert to fraction form
    419,904,607.35/629,856,911.03 = 189,881,196.15/x
  3. Step 3: Cross multiply
    419,904,607.35x = 629,856,911.03 × 189,881,196.15
  4. Step 4: Simplify right side
    419,904,607.35x = 119,597,983,668,771,120
  5. Step 5: Solve for x
    x = 119,597,983,668,771,120/419,904,607.35
  6. Step 6: Final answer
    x = 284,821,794.23

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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.