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Finding the Third Proportional to 18,696,918 and 28,168,416

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Solution

The third proportional to 18,696,918 and 28,168,416 is: 42,437,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,918 : 28,168,416 = 28,168,416 : x
  2. Step 2: Convert to fraction form
    18,696,918/28,168,416 = 28,168,416/x
  3. Step 3: Cross multiply
    18,696,918x = 28,168,416 × 28,168,416
  4. Step 4: Simplify right side
    18,696,918x = 793,459,659,949,056
  5. Step 5: Solve for x
    x = 793,459,659,949,056/18,696,918
  6. Step 6: Final answer
    x = 42,437,992.18

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.