Home / 18,399,765,416.90-25,391,676,324.22-9,941,589,194.20

Finding the Fourth Proportional to 18,399,765,416.90, 25,391,676,324.22 and 9,941,589,194.20

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Solution

The fourth proportional to 18,399,765,416.90, 25,391,676,324.22 and 9,941,589,194.20 is: 13,719,393,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399,765,416.90 : 25,391,676,324.22 = 9,941,589,194.20 : x
  2. Step 2: Convert to fraction form
    18,399,765,416.90/25,391,676,324.22 = 9,941,589,194.20/x
  3. Step 3: Cross multiply
    18,399,765,416.90x = 25,391,676,324.22 × 9,941,589,194.20
  4. Step 4: Simplify right side
    18,399,765,416.90x = 252,433,614,967,396,204,544
  5. Step 5: Solve for x
    x = 252,433,614,967,396,204,544/18,399,765,416.90
  6. Step 6: Final answer
    x = 13,719,393,114.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.