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Finding the Third Proportional to 8,617,478 and 12,759,828

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Solution

The third proportional to 8,617,478 and 12,759,828 is: 18,893,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617,478 : 12,759,828 = 12,759,828 : x
  2. Step 2: Convert to fraction form
    8,617,478/12,759,828 = 12,759,828/x
  3. Step 3: Cross multiply
    8,617,478x = 12,759,828 × 12,759,828
  4. Step 4: Simplify right side
    8,617,478x = 162,813,210,589,584
  5. Step 5: Solve for x
    x = 162,813,210,589,584/8,617,478
  6. Step 6: Final answer
    x = 18,893,371.19

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.