Home / 419,914,608.10-629,871,912.15-394,405,440.10

Finding the Fourth Proportional to 419,914,608.10, 629,871,912.15 and 394,405,440.10

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Solution

The fourth proportional to 419,914,608.10, 629,871,912.15 and 394,405,440.10 is: 591,608,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,914,608.10 : 629,871,912.15 = 394,405,440.10 : x
  2. Step 2: Convert to fraction form
    419,914,608.10/629,871,912.15 = 394,405,440.10/x
  3. Step 3: Cross multiply
    419,914,608.10x = 629,871,912.15 × 394,405,440.10
  4. Step 4: Simplify right side
    419,914,608.10x = 248,424,908,718,149,280
  5. Step 5: Solve for x
    x = 248,424,908,718,149,280/419,914,608.10
  6. Step 6: Final answer
    x = 591,608,160.15

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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.