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Finding the Third Proportional to 18,518,787 and 40,623,318

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Solution

The third proportional to 18,518,787 and 40,623,318 is: 89,112,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518,787 : 40,623,318 = 40,623,318 : x
  2. Step 2: Convert to fraction form
    18,518,787/40,623,318 = 40,623,318/x
  3. Step 3: Cross multiply
    18,518,787x = 40,623,318 × 40,623,318
  4. Step 4: Simplify right side
    18,518,787x = 1,650,253,965,329,124
  5. Step 5: Solve for x
    x = 1,650,253,965,329,124/18,518,787
  6. Step 6: Final answer
    x = 89,112,422.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.