Home / 419,904,679.35-629,857,019.03-384,191,844.15

Finding the Fourth Proportional to 419,904,679.35, 629,857,019.03 and 384,191,844.15

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Solution

The fourth proportional to 419,904,679.35, 629,857,019.03 and 384,191,844.15 is: 576,287,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,679.35 : 629,857,019.03 = 384,191,844.15 : x
  2. Step 2: Convert to fraction form
    419,904,679.35/629,857,019.03 = 384,191,844.15/x
  3. Step 3: Cross multiply
    419,904,679.35x = 629,857,019.03 × 384,191,844.15
  4. Step 4: Simplify right side
    419,904,679.35x = 241,985,929,690,036,352
  5. Step 5: Solve for x
    x = 241,985,929,690,036,352/419,904,679.35
  6. Step 6: Final answer
    x = 576,287,766.23

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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.