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Finding the Third Proportional to 138,949,690 and 204,382,959

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Solution

The third proportional to 138,949,690 and 204,382,959 is: 300,629,630.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,949,690 : 204,382,959 = 204,382,959 : x
  2. Step 2: Convert to fraction form
    138,949,690/204,382,959 = 204,382,959/x
  3. Step 3: Cross multiply
    138,949,690x = 204,382,959 × 204,382,959
  4. Step 4: Simplify right side
    138,949,690x = 41,772,393,929,595,680
  5. Step 5: Solve for x
    x = 41,772,393,929,595,680/138,949,690
  6. Step 6: Final answer
    x = 300,629,630.26

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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.