Home / 419,904,998.10-629,857,497.15-393,031,142.10

Finding the Fourth Proportional to 419,904,998.10, 629,857,497.15 and 393,031,142.10

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Solution

The fourth proportional to 419,904,998.10, 629,857,497.15 and 393,031,142.10 is: 589,546,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,998.10 : 629,857,497.15 = 393,031,142.10 : x
  2. Step 2: Convert to fraction form
    419,904,998.10/629,857,497.15 = 393,031,142.10/x
  3. Step 3: Cross multiply
    419,904,998.10x = 629,857,497.15 × 393,031,142.10
  4. Step 4: Simplify right side
    419,904,998.10x = 247,553,611,465,112,000
  5. Step 5: Solve for x
    x = 247,553,611,465,112,000/419,904,998.10
  6. Step 6: Final answer
    x = 589,546,713.15

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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.