Home / 419,907,815.40-629,861,723.10-404,602,314.60

Finding the Fourth Proportional to 419,907,815.40, 629,861,723.10 and 404,602,314.60

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Solution

The fourth proportional to 419,907,815.40, 629,861,723.10 and 404,602,314.60 is: 606,903,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907,815.40 : 629,861,723.10 = 404,602,314.60 : x
  2. Step 2: Convert to fraction form
    419,907,815.40/629,861,723.10 = 404,602,314.60/x
  3. Step 3: Cross multiply
    419,907,815.40x = 629,861,723.10 × 404,602,314.60
  4. Step 4: Simplify right side
    419,907,815.40x = 254,843,511,044,204,320
  5. Step 5: Solve for x
    x = 254,843,511,044,204,320/419,907,815.40
  6. Step 6: Final answer
    x = 606,903,471.90

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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.