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Finding the Third Proportional to 10,290,872 and 15,128,004

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Solution

The third proportional to 10,290,872 and 15,128,004 is: 22,238,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290,872 : 15,128,004 = 15,128,004 : x
  2. Step 2: Convert to fraction form
    10,290,872/15,128,004 = 15,128,004/x
  3. Step 3: Cross multiply
    10,290,872x = 15,128,004 × 15,128,004
  4. Step 4: Simplify right side
    10,290,872x = 228,856,505,024,016
  5. Step 5: Solve for x
    x = 228,856,505,024,016/10,290,872
  6. Step 6: Final answer
    x = 22,238,786.47

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.