Home / 86,920,128,034.35-130,380,192,051.52-84,471,247,906.35

Finding the Fourth Proportional to 86,920,128,034.35, 130,380,192,051.52 and 84,471,247,906.35

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Solution

The fourth proportional to 86,920,128,034.35, 130,380,192,051.52 and 84,471,247,906.35 is: 126,706,871,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,128,034.35 : 130,380,192,051.52 = 84,471,247,906.35 : x
  2. Step 2: Convert to fraction form
    86,920,128,034.35/130,380,192,051.52 = 84,471,247,906.35/x
  3. Step 3: Cross multiply
    86,920,128,034.35x = 130,380,192,051.52 × 84,471,247,906.35
  4. Step 4: Simplify right side
    86,920,128,034.35x = 11,013,377,524,861,469,982,720
  5. Step 5: Solve for x
    x = 11,013,377,524,861,469,982,720/86,920,128,034.35
  6. Step 6: Final answer
    x = 126,706,871,859.52

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Double scale
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Similar ratio
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1.5x scale

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.