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Finding the Third Proportional to 12,699,792.56 and 19,078,302.09

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Solution

The third proportional to 12,699,792.56 and 19,078,302.09 is: 28,660,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,792.56 : 19,078,302.09 = 19,078,302.09 : x
  2. Step 2: Convert to fraction form
    12,699,792.56/19,078,302.09 = 19,078,302.09/x
  3. Step 3: Cross multiply
    12,699,792.56x = 19,078,302.09 × 19,078,302.09
  4. Step 4: Simplify right side
    12,699,792.56x = 363,981,610,780,385.62
  5. Step 5: Solve for x
    x = 363,981,610,780,385.62/12,699,792.56
  6. Step 6: Final answer
    x = 28,660,437.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.