Home / 419,904,915.80-629,857,373.70-236,238,906.20

Finding the Fourth Proportional to 419,904,915.80, 629,857,373.70 and 236,238,906.20

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Solution

The fourth proportional to 419,904,915.80, 629,857,373.70 and 236,238,906.20 is: 354,358,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,915.80 : 629,857,373.70 = 236,238,906.20 : x
  2. Step 2: Convert to fraction form
    419,904,915.80/629,857,373.70 = 236,238,906.20/x
  3. Step 3: Cross multiply
    419,904,915.80x = 629,857,373.70 × 236,238,906.20
  4. Step 4: Simplify right side
    419,904,915.80x = 148,796,817,024,892,640
  5. Step 5: Solve for x
    x = 148,796,817,024,892,640/419,904,915.80
  6. Step 6: Final answer
    x = 354,358,359.30

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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.