Home / 15,190,915,403.97-20,963,185,796.39-8,416,709,274.33

Finding the Fourth Proportional to 15,190,915,403.97, 20,963,185,796.39 and 8,416,709,274.33

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Solution

The fourth proportional to 15,190,915,403.97, 20,963,185,796.39 and 8,416,709,274.33 is: 11,614,905,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190,915,403.97 : 20,963,185,796.39 = 8,416,709,274.33 : x
  2. Step 2: Convert to fraction form
    15,190,915,403.97/20,963,185,796.39 = 8,416,709,274.33/x
  3. Step 3: Cross multiply
    15,190,915,403.97x = 20,963,185,796.39 × 8,416,709,274.33
  4. Step 4: Simplify right side
    15,190,915,403.97x = 176,441,040,311,936,548,864
  5. Step 5: Solve for x
    x = 176,441,040,311,936,548,864/15,190,915,403.97
  6. Step 6: Final answer
    x = 11,614,905,067.92

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1.5x scale

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.