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Finding the Third Proportional to 4,878,117 and 10,305,657

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Solution

The third proportional to 4,878,117 and 10,305,657 is: 21,772,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878,117 : 10,305,657 = 10,305,657 : x
  2. Step 2: Convert to fraction form
    4,878,117/10,305,657 = 10,305,657/x
  3. Step 3: Cross multiply
    4,878,117x = 10,305,657 × 10,305,657
  4. Step 4: Simplify right side
    4,878,117x = 106,206,566,201,649
  5. Step 5: Solve for x
    x = 106,206,566,201,649/4,878,117
  6. Step 6: Final answer
    x = 21,772,041.59

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.