Home / 419,904,578.40-629,856,867.60-396,096,021.60

Finding the Fourth Proportional to 419,904,578.40, 629,856,867.60 and 396,096,021.60

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Solution

The fourth proportional to 419,904,578.40, 629,856,867.60 and 396,096,021.60 is: 594,144,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,578.40 : 629,856,867.60 = 396,096,021.60 : x
  2. Step 2: Convert to fraction form
    419,904,578.40/629,856,867.60 = 396,096,021.60/x
  3. Step 3: Cross multiply
    419,904,578.40x = 629,856,867.60 × 396,096,021.60
  4. Step 4: Simplify right side
    419,904,578.40x = 249,483,799,433,797,952
  5. Step 5: Solve for x
    x = 249,483,799,433,797,952/419,904,578.40
  6. Step 6: Final answer
    x = 594,144,032.40

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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.