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Finding the Third Proportional to 4,172,830 and 8,896,846

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Solution

The third proportional to 4,172,830 and 8,896,846 is: 18,968,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172,830 : 8,896,846 = 8,896,846 : x
  2. Step 2: Convert to fraction form
    4,172,830/8,896,846 = 8,896,846/x
  3. Step 3: Cross multiply
    4,172,830x = 8,896,846 × 8,896,846
  4. Step 4: Simplify right side
    4,172,830x = 79,153,868,747,716
  5. Step 5: Solve for x
    x = 79,153,868,747,716/4,172,830
  6. Step 6: Final answer
    x = 18,968,869.75

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.