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Finding the Third Proportional to 12,980,290.50 and 27,697,939.88

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Solution

The third proportional to 12,980,290.50 and 27,697,939.88 is: 59,103,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980,290.50 : 27,697,939.88 = 27,697,939.88 : x
  2. Step 2: Convert to fraction form
    12,980,290.50/27,697,939.88 = 27,697,939.88/x
  3. Step 3: Cross multiply
    12,980,290.50x = 27,697,939.88 × 27,697,939.88
  4. Step 4: Simplify right side
    12,980,290.50x = 767,175,873,319,115
  5. Step 5: Solve for x
    x = 767,175,873,319,115/12,980,290.50
  6. Step 6: Final answer
    x = 59,103,135.89

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.