Home / 15,915,067,961.76-21,962,862,067.74-8,681,273,080.71

Finding the Fourth Proportional to 15,915,067,961.76, 21,962,862,067.74 and 8,681,273,080.71

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Solution

The fourth proportional to 15,915,067,961.76, 21,962,862,067.74 and 8,681,273,080.71 is: 11,980,194,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915,067,961.76 : 21,962,862,067.74 = 8,681,273,080.71 : x
  2. Step 2: Convert to fraction form
    15,915,067,961.76/21,962,862,067.74 = 8,681,273,080.71/x
  3. Step 3: Cross multiply
    15,915,067,961.76x = 21,962,862,067.74 × 8,681,273,080.71
  4. Step 4: Simplify right side
    15,915,067,961.76x = 190,665,603,243,904,237,568
  5. Step 5: Solve for x
    x = 190,665,603,243,904,237,568/15,915,067,961.76
  6. Step 6: Final answer
    x = 11,980,194,096.69

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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.