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Finding the Third Proportional to 981,861,330 and 2,181,646,599

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Solution

The third proportional to 981,861,330 and 2,181,646,599 is: 4,847,509,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,861,330 : 2,181,646,599 = 2,181,646,599 : x
  2. Step 2: Convert to fraction form
    981,861,330/2,181,646,599 = 2,181,646,599/x
  3. Step 3: Cross multiply
    981,861,330x = 2,181,646,599 × 2,181,646,599
  4. Step 4: Simplify right side
    981,861,330x = 4,759,581,882,928,267,264
  5. Step 5: Solve for x
    x = 4,759,581,882,928,267,264/981,861,330
  6. Step 6: Final answer
    x = 4,847,509,253.60

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.