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Finding the Third Proportional to 6,889,130 and 11,343,679

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Solution

The third proportional to 6,889,130 and 11,343,679 is: 18,678,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889,130 : 11,343,679 = 11,343,679 : x
  2. Step 2: Convert to fraction form
    6,889,130/11,343,679 = 11,343,679/x
  3. Step 3: Cross multiply
    6,889,130x = 11,343,679 × 11,343,679
  4. Step 4: Simplify right side
    6,889,130x = 128,679,053,255,041
  5. Step 5: Solve for x
    x = 128,679,053,255,041/6,889,130
  6. Step 6: Final answer
    x = 18,678,563.66

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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.