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Finding the Third Proportional to 5,179,521 and 8,125,140

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Solution

The third proportional to 5,179,521 and 8,125,140 is: 12,745,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179,521 : 8,125,140 = 8,125,140 : x
  2. Step 2: Convert to fraction form
    5,179,521/8,125,140 = 8,125,140/x
  3. Step 3: Cross multiply
    5,179,521x = 8,125,140 × 8,125,140
  4. Step 4: Simplify right side
    5,179,521x = 66,017,900,019,600
  5. Step 5: Solve for x
    x = 66,017,900,019,600/5,179,521
  6. Step 6: Final answer
    x = 12,745,946.97

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.