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Finding the Third Proportional to 12,641,646 and 18,927,834

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Solution

The third proportional to 12,641,646 and 18,927,834 is: 28,339,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641,646 : 18,927,834 = 18,927,834 : x
  2. Step 2: Convert to fraction form
    12,641,646/18,927,834 = 18,927,834/x
  3. Step 3: Cross multiply
    12,641,646x = 18,927,834 × 18,927,834
  4. Step 4: Simplify right side
    12,641,646x = 358,262,899,931,556
  5. Step 5: Solve for x
    x = 358,262,899,931,556/12,641,646
  6. Step 6: Final answer
    x = 28,339,893.39

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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.