Home / 20,163,557,913.20-30,245,336,869.80-8,529,865,650.80

Finding the Fourth Proportional to 20,163,557,913.20, 30,245,336,869.80 and 8,529,865,650.80

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Solution

The fourth proportional to 20,163,557,913.20, 30,245,336,869.80 and 8,529,865,650.80 is: 12,794,798,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163,557,913.20 : 30,245,336,869.80 = 8,529,865,650.80 : x
  2. Step 2: Convert to fraction form
    20,163,557,913.20/30,245,336,869.80 = 8,529,865,650.80/x
  3. Step 3: Cross multiply
    20,163,557,913.20x = 30,245,336,869.80 × 8,529,865,650.80
  4. Step 4: Simplify right side
    20,163,557,913.20x = 257,988,660,062,581,817,344
  5. Step 5: Solve for x
    x = 257,988,660,062,581,817,344/20,163,557,913.20
  6. Step 6: Final answer
    x = 12,794,798,476.20

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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.