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Finding the Third Proportional to 62,980,897,487 and 138,799,307,709

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Solution

The third proportional to 62,980,897,487 and 138,799,307,709 is: 305,890,334,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,980,897,487 : 138,799,307,709 = 138,799,307,709 : x
  2. Step 2: Convert to fraction form
    62,980,897,487/138,799,307,709 = 138,799,307,709/x
  3. Step 3: Cross multiply
    62,980,897,487x = 138,799,307,709 × 138,799,307,709
  4. Step 4: Simplify right side
    62,980,897,487x = 19,265,247,820,497,668,800,512
  5. Step 5: Solve for x
    x = 19,265,247,820,497,668,800,512/62,980,897,487
  6. Step 6: Final answer
    x = 305,890,334,834.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.