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Finding the Third Proportional to 15,723,120 and 34,215,360

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Solution

The third proportional to 15,723,120 and 34,215,360 is: 74,456,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723,120 : 34,215,360 = 34,215,360 : x
  2. Step 2: Convert to fraction form
    15,723,120/34,215,360 = 34,215,360/x
  3. Step 3: Cross multiply
    15,723,120x = 34,215,360 × 34,215,360
  4. Step 4: Simplify right side
    15,723,120x = 1,170,690,859,929,600
  5. Step 5: Solve for x
    x = 1,170,690,859,929,600/15,723,120
  6. Step 6: Final answer
    x = 74,456,651.09

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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.