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Finding the Third Proportional to 18,586,514 and 40,262,078

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Solution

The third proportional to 18,586,514 and 40,262,078 is: 87,215,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,514 : 40,262,078 = 40,262,078 : x
  2. Step 2: Convert to fraction form
    18,586,514/40,262,078 = 40,262,078/x
  3. Step 3: Cross multiply
    18,586,514x = 40,262,078 × 40,262,078
  4. Step 4: Simplify right side
    18,586,514x = 1,621,034,924,878,084
  5. Step 5: Solve for x
    x = 1,621,034,924,878,084/18,586,514
  6. Step 6: Final answer
    x = 87,215,651.35

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.