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Finding the Third Proportional to 9,996,868,852.50 and 20,821,172,655

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Solution

The third proportional to 9,996,868,852.50 and 20,821,172,655 is: 43,365,701,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996,868,852.50 : 20,821,172,655 = 20,821,172,655 : x
  2. Step 2: Convert to fraction form
    9,996,868,852.50/20,821,172,655 = 20,821,172,655/x
  3. Step 3: Cross multiply
    9,996,868,852.50x = 20,821,172,655 × 20,821,172,655
  4. Step 4: Simplify right side
    9,996,868,852.50x = 433,521,230,729,319,743,488
  5. Step 5: Solve for x
    x = 433,521,230,729,319,743,488/9,996,868,852.50
  6. Step 6: Final answer
    x = 43,365,701,513.72

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1.5x scale

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.