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Finding the Third Proportional to 7,077,515 and 15,479,731

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Solution

The third proportional to 7,077,515 and 15,479,731 is: 33,856,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077,515 : 15,479,731 = 15,479,731 : x
  2. Step 2: Convert to fraction form
    7,077,515/15,479,731 = 15,479,731/x
  3. Step 3: Cross multiply
    7,077,515x = 15,479,731 × 15,479,731
  4. Step 4: Simplify right side
    7,077,515x = 239,622,071,832,361
  5. Step 5: Solve for x
    x = 239,622,071,832,361/7,077,515
  6. Step 6: Final answer
    x = 33,856,808.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.