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Finding the Third Proportional to 27,861,080 and 42,212,989

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Solution

The third proportional to 27,861,080 and 42,212,989 is: 63,957,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861,080 : 42,212,989 = 42,212,989 : x
  2. Step 2: Convert to fraction form
    27,861,080/42,212,989 = 42,212,989/x
  3. Step 3: Cross multiply
    27,861,080x = 42,212,989 × 42,212,989
  4. Step 4: Simplify right side
    27,861,080x = 1,781,936,440,314,121
  5. Step 5: Solve for x
    x = 1,781,936,440,314,121/27,861,080
  6. Step 6: Final answer
    x = 63,957,909.75

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.