Home / 20,820,296,843.08-28,731,203,799.36-11,304,630,799.72

Finding the Fourth Proportional to 20,820,296,843.08, 28,731,203,799.36 and 11,304,630,799.72

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Solution

The fourth proportional to 20,820,296,843.08, 28,731,203,799.36 and 11,304,630,799.72 is: 15,599,952,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,820,296,843.08 : 28,731,203,799.36 = 11,304,630,799.72 : x
  2. Step 2: Convert to fraction form
    20,820,296,843.08/28,731,203,799.36 = 11,304,630,799.72/x
  3. Step 3: Cross multiply
    20,820,296,843.08x = 28,731,203,799.36 × 11,304,630,799.72
  4. Step 4: Simplify right side
    20,820,296,843.08x = 324,795,651,383,277,322,240
  5. Step 5: Solve for x
    x = 324,795,651,383,277,322,240/20,820,296,843.08
  6. Step 6: Final answer
    x = 15,599,952,960.86

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Double scale
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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.