Home / 128,104,554.60-192,181,715.10-55,321,194.60

Finding the Fourth Proportional to 128,104,554.60, 192,181,715.10 and 55,321,194.60

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Solution

The fourth proportional to 128,104,554.60, 192,181,715.10 and 55,321,194.60 is: 82,992,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,104,554.60 : 192,181,715.10 = 55,321,194.60 : x
  2. Step 2: Convert to fraction form
    128,104,554.60/192,181,715.10 = 55,321,194.60/x
  3. Step 3: Cross multiply
    128,104,554.60x = 192,181,715.10 × 55,321,194.60
  4. Step 4: Simplify right side
    128,104,554.60x = 10,631,722,059,608,858
  5. Step 5: Solve for x
    x = 10,631,722,059,608,858/128,104,554.60
  6. Step 6: Final answer
    x = 82,992,537.56

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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.