Home / 18,084,138.80-27,126,208.20-10,431,388.40

Finding the Fourth Proportional to 18,084,138.80, 27,126,208.20 and 10,431,388.40

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Solution

The fourth proportional to 18,084,138.80, 27,126,208.20 and 10,431,388.40 is: 15,647,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084,138.80 : 27,126,208.20 = 10,431,388.40 : x
  2. Step 2: Convert to fraction form
    18,084,138.80/27,126,208.20 = 10,431,388.40/x
  3. Step 3: Cross multiply
    18,084,138.80x = 27,126,208.20 × 10,431,388.40
  4. Step 4: Simplify right side
    18,084,138.80x = 282,964,013,553,464.88
  5. Step 5: Solve for x
    x = 282,964,013,553,464.88/18,084,138.80
  6. Step 6: Final answer
    x = 15,647,082.60

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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.