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Finding the Third Proportional to 2,878,720 and 6,156,021

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Solution

The third proportional to 2,878,720 and 6,156,021 is: 13,164,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,720 : 6,156,021 = 6,156,021 : x
  2. Step 2: Convert to fraction form
    2,878,720/6,156,021 = 6,156,021/x
  3. Step 3: Cross multiply
    2,878,720x = 6,156,021 × 6,156,021
  4. Step 4: Simplify right side
    2,878,720x = 37,896,594,552,441
  5. Step 5: Solve for x
    x = 37,896,594,552,441/2,878,720
  6. Step 6: Final answer
    x = 13,164,390.62

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.