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Finding the Third Proportional to 12,996,990.38 and 28,161,253.88

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Solution

The third proportional to 12,996,990.38 and 28,161,253.88 is: 61,018,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996,990.38 : 28,161,253.88 = 28,161,253.88 : x
  2. Step 2: Convert to fraction form
    12,996,990.38/28,161,253.88 = 28,161,253.88/x
  3. Step 3: Cross multiply
    12,996,990.38x = 28,161,253.88 × 28,161,253.88
  4. Step 4: Simplify right side
    12,996,990.38x = 793,056,219,812,202.50
  5. Step 5: Solve for x
    x = 793,056,219,812,202.50/12,996,990.38
  6. Step 6: Final answer
    x = 61,018,450.96

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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.