Home / 2,639,313,388.20-3,961,520,999.10-1,330,693,069.80

Finding the Fourth Proportional to 2,639,313,388.20, 3,961,520,999.10 and 1,330,693,069.80

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Solution

The fourth proportional to 2,639,313,388.20, 3,961,520,999.10 and 1,330,693,069.80 is: 1,997,325,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,313,388.20 : 3,961,520,999.10 = 1,330,693,069.80 : x
  2. Step 2: Convert to fraction form
    2,639,313,388.20/3,961,520,999.10 = 1,330,693,069.80/x
  3. Step 3: Cross multiply
    2,639,313,388.20x = 3,961,520,999.10 × 1,330,693,069.80
  4. Step 4: Simplify right side
    2,639,313,388.20x = 5,271,568,539,369,541,632
  5. Step 5: Solve for x
    x = 5,271,568,539,369,541,632/2,639,313,388.20
  6. Step 6: Final answer
    x = 1,997,325,729.84

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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.