Home / 419,904,833.60-629,857,250.40-408,567,425.60

Finding the Fourth Proportional to 419,904,833.60, 629,857,250.40 and 408,567,425.60

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Solution

The fourth proportional to 419,904,833.60, 629,857,250.40 and 408,567,425.60 is: 612,851,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,833.60 : 629,857,250.40 = 408,567,425.60 : x
  2. Step 2: Convert to fraction form
    419,904,833.60/629,857,250.40 = 408,567,425.60/x
  3. Step 3: Cross multiply
    419,904,833.60x = 629,857,250.40 × 408,567,425.60
  4. Step 4: Simplify right side
    419,904,833.60x = 257,339,155,291,422,560
  5. Step 5: Solve for x
    x = 257,339,155,291,422,560/419,904,833.60
  6. Step 6: Final answer
    x = 612,851,138.40

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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.