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Finding the Third Proportional to 18,278,946 and 40,145,058

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Solution

The third proportional to 18,278,946 and 40,145,058 is: 88,168,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278,946 : 40,145,058 = 40,145,058 : x
  2. Step 2: Convert to fraction form
    18,278,946/40,145,058 = 40,145,058/x
  3. Step 3: Cross multiply
    18,278,946x = 40,145,058 × 40,145,058
  4. Step 4: Simplify right side
    18,278,946x = 1,611,625,681,823,364
  5. Step 5: Solve for x
    x = 1,611,625,681,823,364/18,278,946
  6. Step 6: Final answer
    x = 88,168,414.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.