Home / 123,198,022,915.11-184,478,771,660.58-85,027,029,115.68

Finding the Fourth Proportional to 123,198,022,915.11, 184,478,771,660.58 and 85,027,029,115.68

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Solution

The fourth proportional to 123,198,022,915.11, 184,478,771,660.58 and 85,027,029,115.68 is: 127,320,889,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,198,022,915.11 : 184,478,771,660.58 = 85,027,029,115.68 : x
  2. Step 2: Convert to fraction form
    123,198,022,915.11/184,478,771,660.58 = 85,027,029,115.68/x
  3. Step 3: Cross multiply
    123,198,022,915.11x = 184,478,771,660.58 × 85,027,029,115.68
  4. Step 4: Simplify right side
    123,198,022,915.11x = 15,685,681,889,209,015,599,104
  5. Step 5: Solve for x
    x = 15,685,681,889,209,015,599,104/123,198,022,915.11
  6. Step 6: Final answer
    x = 127,320,889,719.29

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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.