Home / 128,196,869.34-192,487,410.09-110,978,180.94

Finding the Fourth Proportional to 128,196,869.34, 192,487,410.09 and 110,978,180.94

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Solution

The fourth proportional to 128,196,869.34, 192,487,410.09 and 110,978,180.94 is: 166,633,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,196,869.34 : 192,487,410.09 = 110,978,180.94 : x
  2. Step 2: Convert to fraction form
    128,196,869.34/192,487,410.09 = 110,978,180.94/x
  3. Step 3: Cross multiply
    128,196,869.34x = 192,487,410.09 × 110,978,180.94
  4. Step 4: Simplify right side
    128,196,869.34x = 21,361,902,625,640,000
  5. Step 5: Solve for x
    x = 21,361,902,625,640,000/128,196,869.34
  6. Step 6: Final answer
    x = 166,633,574.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.