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Finding the Third Proportional to 8,647,585 and 12,711,130

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Solution

The third proportional to 8,647,585 and 12,711,130 is: 18,684,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647,585 : 12,711,130 = 12,711,130 : x
  2. Step 2: Convert to fraction form
    8,647,585/12,711,130 = 12,711,130/x
  3. Step 3: Cross multiply
    8,647,585x = 12,711,130 × 12,711,130
  4. Step 4: Simplify right side
    8,647,585x = 161,572,825,876,900
  5. Step 5: Solve for x
    x = 161,572,825,876,900/8,647,585
  6. Step 6: Final answer
    x = 18,684,155.85

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.