Home / 1,093,988,380.72-1,639,976,988.48-394,309,305.04

Finding the Fourth Proportional to 1,093,988,380.72, 1,639,976,988.48 and 394,309,305.04

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Solution

The fourth proportional to 1,093,988,380.72, 1,639,976,988.48 and 394,309,305.04 is: 591,101,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,988,380.72 : 1,639,976,988.48 = 394,309,305.04 : x
  2. Step 2: Convert to fraction form
    1,093,988,380.72/1,639,976,988.48 = 394,309,305.04/x
  3. Step 3: Cross multiply
    1,093,988,380.72x = 1,639,976,988.48 × 394,309,305.04
  4. Step 4: Simplify right side
    1,093,988,380.72x = 646,658,186,609,140,992
  5. Step 5: Solve for x
    x = 646,658,186,609,140,992/1,093,988,380.72
  6. Step 6: Final answer
    x = 591,101,512.60

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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.