Home / 419,914,725.60-629,872,088.40-394,405,557.60

Finding the Fourth Proportional to 419,914,725.60, 629,872,088.40 and 394,405,557.60

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Solution

The fourth proportional to 419,914,725.60, 629,872,088.40 and 394,405,557.60 is: 591,608,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,914,725.60 : 629,872,088.40 = 394,405,557.60 : x
  2. Step 2: Convert to fraction form
    419,914,725.60/629,872,088.40 = 394,405,557.60/x
  3. Step 3: Cross multiply
    419,914,725.60x = 629,872,088.40 × 394,405,557.60
  4. Step 4: Simplify right side
    419,914,725.60x = 248,425,052,242,078,496
  5. Step 5: Solve for x
    x = 248,425,052,242,078,496/419,914,725.60
  6. Step 6: Final answer
    x = 591,608,336.40

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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.