Home / 451,998,227.75-678,030,224.85-189,419,208.39

Finding the Fourth Proportional to 451,998,227.75, 678,030,224.85 and 189,419,208.39

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Solution

The fourth proportional to 451,998,227.75, 678,030,224.85 and 189,419,208.39 is: 284,142,592.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,998,227.75 : 678,030,224.85 = 189,419,208.39 : x
  2. Step 2: Convert to fraction form
    451,998,227.75/678,030,224.85 = 189,419,208.39/x
  3. Step 3: Cross multiply
    451,998,227.75x = 678,030,224.85 × 189,419,208.39
  4. Step 4: Simplify right side
    451,998,227.75x = 128,431,948,455,580,704
  5. Step 5: Solve for x
    x = 128,431,948,455,580,704/451,998,227.75
  6. Step 6: Final answer
    x = 284,142,592.98

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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.