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Finding the Third Proportional to 5,256,810 and 7,678,523

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Solution

The third proportional to 5,256,810 and 7,678,523 is: 11,215,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256,810 : 7,678,523 = 7,678,523 : x
  2. Step 2: Convert to fraction form
    5,256,810/7,678,523 = 7,678,523/x
  3. Step 3: Cross multiply
    5,256,810x = 7,678,523 × 7,678,523
  4. Step 4: Simplify right side
    5,256,810x = 58,959,715,461,529
  5. Step 5: Solve for x
    x = 58,959,715,461,529/5,256,810
  6. Step 6: Final answer
    x = 11,215,873.40

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.