Home / 388,240,128,331.20-582,360,192,496.80-189,391,061,937.60

Finding the Fourth Proportional to 388,240,128,331.20, 582,360,192,496.80 and 189,391,061,937.60

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Solution

The fourth proportional to 388,240,128,331.20, 582,360,192,496.80 and 189,391,061,937.60 is: 284,086,592,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,240,128,331.20 : 582,360,192,496.80 = 189,391,061,937.60 : x
  2. Step 2: Convert to fraction form
    388,240,128,331.20/582,360,192,496.80 = 189,391,061,937.60/x
  3. Step 3: Cross multiply
    388,240,128,331.20x = 582,360,192,496.80 × 189,391,061,937.60
  4. Step 4: Simplify right side
    388,240,128,331.20x = 110,293,815,287,154,112,200,704
  5. Step 5: Solve for x
    x = 110,293,815,287,154,112,200,704/388,240,128,331.20
  6. Step 6: Final answer
    x = 284,086,592,906.40

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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.