Home / 128,202,920.12-192,496,486.44-110,984,231.72

Finding the Fourth Proportional to 128,202,920.12, 192,496,486.44 and 110,984,231.72

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Solution

The fourth proportional to 128,202,920.12, 192,496,486.44 and 110,984,231.72 is: 166,642,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,202,920.12 : 192,496,486.44 = 110,984,231.72 : x
  2. Step 2: Convert to fraction form
    128,202,920.12/192,496,486.44 = 110,984,231.72/x
  3. Step 3: Cross multiply
    128,202,920.12x = 192,496,486.44 × 110,984,231.72
  4. Step 4: Simplify right side
    128,202,920.12x = 21,364,074,656,342,796
  5. Step 5: Solve for x
    x = 21,364,074,656,342,796/128,202,920.12
  6. Step 6: Final answer
    x = 166,642,652.42

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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.