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Finding the Third Proportional to 5,130,171 and 7,215,489

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Solution

The third proportional to 5,130,171 and 7,215,489 is: 10,148,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,171 : 7,215,489 = 7,215,489 : x
  2. Step 2: Convert to fraction form
    5,130,171/7,215,489 = 7,215,489/x
  3. Step 3: Cross multiply
    5,130,171x = 7,215,489 × 7,215,489
  4. Step 4: Simplify right side
    5,130,171x = 52,063,281,509,121
  5. Step 5: Solve for x
    x = 52,063,281,509,121/5,130,171
  6. Step 6: Final answer
    x = 10,148,449.54

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.