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Finding the Third Proportional to 3,645,387 and 7,977,330

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Solution

The third proportional to 3,645,387 and 7,977,330 is: 17,457,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645,387 : 7,977,330 = 7,977,330 : x
  2. Step 2: Convert to fraction form
    3,645,387/7,977,330 = 7,977,330/x
  3. Step 3: Cross multiply
    3,645,387x = 7,977,330 × 7,977,330
  4. Step 4: Simplify right side
    3,645,387x = 63,637,793,928,900
  5. Step 5: Solve for x
    x = 63,637,793,928,900/3,645,387
  6. Step 6: Final answer
    x = 17,457,074.91

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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.