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Finding the Third Proportional to 12,915,764,654 and 20,216,699,270

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Solution

The third proportional to 12,915,764,654 and 20,216,699,270 is: 31,644,655,993.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,764,654 : 20,216,699,270 = 20,216,699,270 : x
  2. Step 2: Convert to fraction form
    12,915,764,654/20,216,699,270 = 20,216,699,270/x
  3. Step 3: Cross multiply
    12,915,764,654x = 20,216,699,270 × 20,216,699,270
  4. Step 4: Simplify right side
    12,915,764,654x = 408,714,929,373,618,503,680
  5. Step 5: Solve for x
    x = 408,714,929,373,618,503,680/12,915,764,654
  6. Step 6: Final answer
    x = 31,644,655,993.87

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.