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Finding the Third Proportional to 6,889,128 and 11,343,675.88

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Solution

The third proportional to 6,889,128 and 11,343,675.88 is: 18,678,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889,128 : 11,343,675.88 = 11,343,675.88 : x
  2. Step 2: Convert to fraction form
    6,889,128/11,343,675.88 = 11,343,675.88/x
  3. Step 3: Cross multiply
    6,889,128x = 11,343,675.88 × 11,343,675.88
  4. Step 4: Simplify right side
    6,889,128x = 128,678,982,357,057.02
  5. Step 5: Solve for x
    x = 128,678,982,357,057.02/6,889,128
  6. Step 6: Final answer
    x = 18,678,558.79

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.