Home / 120,990,257.25-181,485,109.08-51,858,234.56

Finding the Fourth Proportional to 120,990,257.25, 181,485,109.08 and 51,858,234.56

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Solution

The fourth proportional to 120,990,257.25, 181,485,109.08 and 51,858,234.56 is: 77,787,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,990,257.25 : 181,485,109.08 = 51,858,234.56 : x
  2. Step 2: Convert to fraction form
    120,990,257.25/181,485,109.08 = 51,858,234.56/x
  3. Step 3: Cross multiply
    120,990,257.25x = 181,485,109.08 × 51,858,234.56
  4. Step 4: Simplify right side
    120,990,257.25x = 9,411,497,354,910,400
  5. Step 5: Solve for x
    x = 9,411,497,354,910,400/120,990,257.25
  6. Step 6: Final answer
    x = 77,787,233.19

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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.