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Finding the Third Proportional to 9,996,868,854 and 20,821,172,656.78

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Solution

The third proportional to 9,996,868,854 and 20,821,172,656.78 is: 43,365,701,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996,868,854 : 20,821,172,656.78 = 20,821,172,656.78 : x
  2. Step 2: Convert to fraction form
    9,996,868,854/20,821,172,656.78 = 20,821,172,656.78/x
  3. Step 3: Cross multiply
    9,996,868,854x = 20,821,172,656.78 × 20,821,172,656.78
  4. Step 4: Simplify right side
    9,996,868,854x = 433,521,230,803,484,672,000
  5. Step 5: Solve for x
    x = 433,521,230,803,484,672,000/9,996,868,854
  6. Step 6: Final answer
    x = 43,365,701,514.63

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.