Home / 419,904,561.60-629,856,842.40-379,593,777.60

Finding the Fourth Proportional to 419,904,561.60, 629,856,842.40 and 379,593,777.60

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Solution

The fourth proportional to 419,904,561.60, 629,856,842.40 and 379,593,777.60 is: 569,390,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,561.60 : 629,856,842.40 = 379,593,777.60 : x
  2. Step 2: Convert to fraction form
    419,904,561.60/629,856,842.40 = 379,593,777.60/x
  3. Step 3: Cross multiply
    419,904,561.60x = 629,856,842.40 × 379,593,777.60
  4. Step 4: Simplify right side
    419,904,561.60x = 239,089,738,153,823,872
  5. Step 5: Solve for x
    x = 239,089,738,153,823,872/419,904,561.60
  6. Step 6: Final answer
    x = 569,390,666.40

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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.