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Finding the Third Proportional to 12,128,509 and 26,535,890

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Solution

The third proportional to 12,128,509 and 26,535,890 is: 58,057,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,509 : 26,535,890 = 26,535,890 : x
  2. Step 2: Convert to fraction form
    12,128,509/26,535,890 = 26,535,890/x
  3. Step 3: Cross multiply
    12,128,509x = 26,535,890 × 26,535,890
  4. Step 4: Simplify right side
    12,128,509x = 704,153,458,092,100
  5. Step 5: Solve for x
    x = 704,153,458,092,100/12,128,509
  6. Step 6: Final answer
    x = 58,057,709.99

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.