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Finding the Third Proportional to 12,589,040 and 18,930,313

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Solution

The third proportional to 12,589,040 and 18,930,313 is: 28,465,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,040 : 18,930,313 = 18,930,313 : x
  2. Step 2: Convert to fraction form
    12,589,040/18,930,313 = 18,930,313/x
  3. Step 3: Cross multiply
    12,589,040x = 18,930,313 × 18,930,313
  4. Step 4: Simplify right side
    12,589,040x = 358,356,750,277,969
  5. Step 5: Solve for x
    x = 358,356,750,277,969/12,589,040
  6. Step 6: Final answer
    x = 28,465,772.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.