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Finding the Third Proportional to 5,421,930 and 11,293,320

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Solution

The third proportional to 5,421,930 and 11,293,320 is: 23,522,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,930 : 11,293,320 = 11,293,320 : x
  2. Step 2: Convert to fraction form
    5,421,930/11,293,320 = 11,293,320/x
  3. Step 3: Cross multiply
    5,421,930x = 11,293,320 × 11,293,320
  4. Step 4: Simplify right side
    5,421,930x = 127,539,076,622,400
  5. Step 5: Solve for x
    x = 127,539,076,622,400/5,421,930
  6. Step 6: Final answer
    x = 23,522,818.74

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.