Home / 419,904,511.60-629,856,767.40-379,593,727.60

Finding the Fourth Proportional to 419,904,511.60, 629,856,767.40 and 379,593,727.60

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Solution

The fourth proportional to 419,904,511.60, 629,856,767.40 and 379,593,727.60 is: 569,390,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,511.60 : 629,856,767.40 = 379,593,727.60 : x
  2. Step 2: Convert to fraction form
    419,904,511.60/629,856,767.40 = 379,593,727.60/x
  3. Step 3: Cross multiply
    419,904,511.60x = 629,856,767.40 × 379,593,727.60
  4. Step 4: Simplify right side
    419,904,511.60x = 239,089,678,191,452,160
  5. Step 5: Solve for x
    x = 239,089,678,191,452,160/419,904,511.60
  6. Step 6: Final answer
    x = 569,390,591.40

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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.