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Finding the Third Proportional to 12,171,585 and 18,836,853

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Solution

The third proportional to 12,171,585 and 18,836,853 is: 29,152,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171,585 : 18,836,853 = 18,836,853 : x
  2. Step 2: Convert to fraction form
    12,171,585/18,836,853 = 18,836,853/x
  3. Step 3: Cross multiply
    12,171,585x = 18,836,853 × 18,836,853
  4. Step 4: Simplify right side
    12,171,585x = 354,827,030,943,609
  5. Step 5: Solve for x
    x = 354,827,030,943,609/12,171,585
  6. Step 6: Final answer
    x = 29,152,080.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.