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Finding the Third Proportional to 4,198,280 and 8,695,312

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Solution

The third proportional to 4,198,280 and 8,695,312 is: 18,009,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,198,280 : 8,695,312 = 8,695,312 : x
  2. Step 2: Convert to fraction form
    4,198,280/8,695,312 = 8,695,312/x
  3. Step 3: Cross multiply
    4,198,280x = 8,695,312 × 8,695,312
  4. Step 4: Simplify right side
    4,198,280x = 75,608,450,777,344
  5. Step 5: Solve for x
    x = 75,608,450,777,344/4,198,280
  6. Step 6: Final answer
    x = 18,009,387.36

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.