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Finding the Third Proportional to 18,586,209 and 40,260,870

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Solution

The third proportional to 18,586,209 and 40,260,870 is: 87,211,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,209 : 40,260,870 = 40,260,870 : x
  2. Step 2: Convert to fraction form
    18,586,209/40,260,870 = 40,260,870/x
  3. Step 3: Cross multiply
    18,586,209x = 40,260,870 × 40,260,870
  4. Step 4: Simplify right side
    18,586,209x = 1,620,937,653,156,900
  5. Step 5: Solve for x
    x = 1,620,937,653,156,900/18,586,209
  6. Step 6: Final answer
    x = 87,211,849.02

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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.