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Finding the Third Proportional to 7,808,366,222 and 11,895,509,380

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Solution

The third proportional to 7,808,366,222 and 11,895,509,380 is: 18,121,991,129.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808,366,222 : 11,895,509,380 = 11,895,509,380 : x
  2. Step 2: Convert to fraction form
    7,808,366,222/11,895,509,380 = 11,895,509,380/x
  3. Step 3: Cross multiply
    7,808,366,222x = 11,895,509,380 × 11,895,509,380
  4. Step 4: Simplify right side
    7,808,366,222x = 141,503,143,409,667,981,312
  5. Step 5: Solve for x
    x = 141,503,143,409,667,981,312/7,808,366,222
  6. Step 6: Final answer
    x = 18,121,991,129.33

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.