Home / 128,327,538.60-192,443,891.58-55,554,961.32

Finding the Fourth Proportional to 128,327,538.60, 192,443,891.58 and 55,554,961.32

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Solution

The fourth proportional to 128,327,538.60, 192,443,891.58 and 55,554,961.32 is: 83,311,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,327,538.60 : 192,443,891.58 = 55,554,961.32 : x
  2. Step 2: Convert to fraction form
    128,327,538.60/192,443,891.58 = 55,554,961.32/x
  3. Step 3: Cross multiply
    128,327,538.60x = 192,443,891.58 × 55,554,961.32
  4. Step 4: Simplify right side
    128,327,538.60x = 10,691,212,952,997,174
  5. Step 5: Solve for x
    x = 10,691,212,952,997,174/128,327,538.60
  6. Step 6: Final answer
    x = 83,311,914.73

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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.