Home / 193,538,668.20-290,440,712.70-85,910,533.80

Finding the Fourth Proportional to 193,538,668.20, 290,440,712.70 and 85,910,533.80

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Solution

The fourth proportional to 193,538,668.20, 290,440,712.70 and 85,910,533.80 is: 128,924,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,538,668.20 : 290,440,712.70 = 85,910,533.80 : x
  2. Step 2: Convert to fraction form
    193,538,668.20/290,440,712.70 = 85,910,533.80/x
  3. Step 3: Cross multiply
    193,538,668.20x = 290,440,712.70 × 85,910,533.80
  4. Step 4: Simplify right side
    193,538,668.20x = 24,951,916,665,309,436
  5. Step 5: Solve for x
    x = 24,951,916,665,309,436/193,538,668.20
  6. Step 6: Final answer
    x = 128,924,709.97

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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.