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Finding the Fourth Proportional to 8,558,481,728.70, 11,957,385,618.90 and 8,558,481,728.70

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Solution

The fourth proportional to 8,558,481,728.70, 11,957,385,618.90 and 8,558,481,728.70 is: 11,957,385,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558,481,728.70 : 11,957,385,618.90 = 8,558,481,728.70 : x
  2. Step 2: Convert to fraction form
    8,558,481,728.70/11,957,385,618.90 = 8,558,481,728.70/x
  3. Step 3: Cross multiply
    8,558,481,728.70x = 11,957,385,618.90 × 8,558,481,728.70
  4. Step 4: Simplify right side
    8,558,481,728.70x = 102,337,066,342,375,784,448
  5. Step 5: Solve for x
    x = 102,337,066,342,375,784,448/8,558,481,728.70
  6. Step 6: Final answer
    x = 11,957,385,618.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.