Home / 20,163,557,906.20-30,245,336,859.30-8,529,865,643.80

Finding the Fourth Proportional to 20,163,557,906.20, 30,245,336,859.30 and 8,529,865,643.80

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Solution

The fourth proportional to 20,163,557,906.20, 30,245,336,859.30 and 8,529,865,643.80 is: 12,794,798,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163,557,906.20 : 30,245,336,859.30 = 8,529,865,643.80 : x
  2. Step 2: Convert to fraction form
    20,163,557,906.20/30,245,336,859.30 = 8,529,865,643.80/x
  3. Step 3: Cross multiply
    20,163,557,906.20x = 30,245,336,859.30 × 8,529,865,643.80
  4. Step 4: Simplify right side
    20,163,557,906.20x = 257,988,659,761,300,865,024
  5. Step 5: Solve for x
    x = 257,988,659,761,300,865,024/20,163,557,906.20
  6. Step 6: Final answer
    x = 12,794,798,465.70

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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.