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Finding the Third Proportional to 4,972,761 and 7,678,813.50

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Solution

The third proportional to 4,972,761 and 7,678,813.50 is: 11,857,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972,761 : 7,678,813.50 = 7,678,813.50 : x
  2. Step 2: Convert to fraction form
    4,972,761/7,678,813.50 = 7,678,813.50/x
  3. Step 3: Cross multiply
    4,972,761x = 7,678,813.50 × 7,678,813.50
  4. Step 4: Simplify right side
    4,972,761x = 58,964,176,767,782.25
  5. Step 5: Solve for x
    x = 58,964,176,767,782.25/4,972,761
  6. Step 6: Final answer
    x = 11,857,432.27

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.