Home / 419,904,834.60-629,857,251.90-408,567,426.60

Finding the Fourth Proportional to 419,904,834.60, 629,857,251.90 and 408,567,426.60

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Solution

The fourth proportional to 419,904,834.60, 629,857,251.90 and 408,567,426.60 is: 612,851,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,834.60 : 629,857,251.90 = 408,567,426.60 : x
  2. Step 2: Convert to fraction form
    419,904,834.60/629,857,251.90 = 408,567,426.60/x
  3. Step 3: Cross multiply
    419,904,834.60x = 629,857,251.90 × 408,567,426.60
  4. Step 4: Simplify right side
    419,904,834.60x = 257,339,156,534,130,976
  5. Step 5: Solve for x
    x = 257,339,156,534,130,976/419,904,834.60
  6. Step 6: Final answer
    x = 612,851,139.90

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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.