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Finding the Third Proportional to 28,420,515 and 61,664,886

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Solution

The third proportional to 28,420,515 and 61,664,886 is: 133,796,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,515 : 61,664,886 = 61,664,886 : x
  2. Step 2: Convert to fraction form
    28,420,515/61,664,886 = 61,664,886/x
  3. Step 3: Cross multiply
    28,420,515x = 61,664,886 × 61,664,886
  4. Step 4: Simplify right side
    28,420,515x = 3,802,558,165,392,996
  5. Step 5: Solve for x
    x = 3,802,558,165,392,996/28,420,515
  6. Step 6: Final answer
    x = 133,796,244.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.