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Finding the Third Proportional to 5,187,954.50 and 8,287,839.75

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Solution

The third proportional to 5,187,954.50 and 8,287,839.75 is: 13,239,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,954.50 : 8,287,839.75 = 8,287,839.75 : x
  2. Step 2: Convert to fraction form
    5,187,954.50/8,287,839.75 = 8,287,839.75/x
  3. Step 3: Cross multiply
    5,187,954.50x = 8,287,839.75 × 8,287,839.75
  4. Step 4: Simplify right side
    5,187,954.50x = 68,688,287,721,680.06
  5. Step 5: Solve for x
    x = 68,688,287,721,680.06/5,187,954.50
  6. Step 6: Final answer
    x = 13,239,955.69

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.