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Finding the Third Proportional to 8,519,490 and 18,338,058

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Solution

The third proportional to 8,519,490 and 18,338,058 is: 39,472,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519,490 : 18,338,058 = 18,338,058 : x
  2. Step 2: Convert to fraction form
    8,519,490/18,338,058 = 18,338,058/x
  3. Step 3: Cross multiply
    8,519,490x = 18,338,058 × 18,338,058
  4. Step 4: Simplify right side
    8,519,490x = 336,284,371,211,364
  5. Step 5: Solve for x
    x = 336,284,371,211,364/8,519,490
  6. Step 6: Final answer
    x = 39,472,359.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.