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Finding the Third Proportional to 15,240,578 and 20,698,371

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Solution

The third proportional to 15,240,578 and 20,698,371 is: 28,110,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240,578 : 20,698,371 = 20,698,371 : x
  2. Step 2: Convert to fraction form
    15,240,578/20,698,371 = 20,698,371/x
  3. Step 3: Cross multiply
    15,240,578x = 20,698,371 × 20,698,371
  4. Step 4: Simplify right side
    15,240,578x = 428,422,562,053,641
  5. Step 5: Solve for x
    x = 428,422,562,053,641/15,240,578
  6. Step 6: Final answer
    x = 28,110,650.53

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.