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Finding the Third Proportional to 18,730,650 and 40,864,578

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Solution

The third proportional to 18,730,650 and 40,864,578 is: 89,154,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730,650 : 40,864,578 = 40,864,578 : x
  2. Step 2: Convert to fraction form
    18,730,650/40,864,578 = 40,864,578/x
  3. Step 3: Cross multiply
    18,730,650x = 40,864,578 × 40,864,578
  4. Step 4: Simplify right side
    18,730,650x = 1,669,913,735,118,084
  5. Step 5: Solve for x
    x = 1,669,913,735,118,084/18,730,650
  6. Step 6: Final answer
    x = 89,154,072.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.