Home / 20,431,258,505.80-30,632,179,133.58-12,554,396,126.44

Finding the Fourth Proportional to 20,431,258,505.80, 30,632,179,133.58 and 12,554,396,126.44

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Solution

The fourth proportional to 20,431,258,505.80, 30,632,179,133.58 and 12,554,396,126.44 is: 18,822,556,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431,258,505.80 : 30,632,179,133.58 = 12,554,396,126.44 : x
  2. Step 2: Convert to fraction form
    20,431,258,505.80/30,632,179,133.58 = 12,554,396,126.44/x
  3. Step 3: Cross multiply
    20,431,258,505.80x = 30,632,179,133.58 × 12,554,396,126.44
  4. Step 4: Simplify right side
    20,431,258,505.80x = 384,568,511,059,032,997,888
  5. Step 5: Solve for x
    x = 384,568,511,059,032,997,888/20,431,258,505.80
  6. Step 6: Final answer
    x = 18,822,556,180.27

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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.