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Finding the Third Proportional to 31,191,753 and 69,555,489

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Solution

The third proportional to 31,191,753 and 69,555,489 is: 155,104,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191,753 : 69,555,489 = 69,555,489 : x
  2. Step 2: Convert to fraction form
    31,191,753/69,555,489 = 69,555,489/x
  3. Step 3: Cross multiply
    31,191,753x = 69,555,489 × 69,555,489
  4. Step 4: Simplify right side
    31,191,753x = 4,837,966,050,029,121
  5. Step 5: Solve for x
    x = 4,837,966,050,029,121/31,191,753
  6. Step 6: Final answer
    x = 155,104,012.59

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.