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Finding the Third Proportional to 3,590,280,399 and 7,856,890,921

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Solution

The third proportional to 3,590,280,399 and 7,856,890,921 is: 17,193,847,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590,280,399 : 7,856,890,921 = 7,856,890,921 : x
  2. Step 2: Convert to fraction form
    3,590,280,399/7,856,890,921 = 7,856,890,921/x
  3. Step 3: Cross multiply
    3,590,280,399x = 7,856,890,921 × 7,856,890,921
  4. Step 4: Simplify right side
    3,590,280,399x = 61,730,734,944,492,224,512
  5. Step 5: Solve for x
    x = 61,730,734,944,492,224,512/3,590,280,399
  6. Step 6: Final answer
    x = 17,193,847,857.03

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.