Home / 407,822,793,768.25-611,629,848,174.65-120,913,760,850.42

Finding the Fourth Proportional to 407,822,793,768.25, 611,629,848,174.65 and 120,913,760,850.42

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Solution

The fourth proportional to 407,822,793,768.25, 611,629,848,174.65 and 120,913,760,850.42 is: 181,339,705,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,822,793,768.25 : 611,629,848,174.65 = 120,913,760,850.42 : x
  2. Step 2: Convert to fraction form
    407,822,793,768.25/611,629,848,174.65 = 120,913,760,850.42/x
  3. Step 3: Cross multiply
    407,822,793,768.25x = 611,629,848,174.65 × 120,913,760,850.42
  4. Step 4: Simplify right side
    407,822,793,768.25x = 73,954,465,191,168,325,976,064
  5. Step 5: Solve for x
    x = 73,954,465,191,168,325,976,064/407,822,793,768.25
  6. Step 6: Final answer
    x = 181,339,705,188.71

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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.