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Finding the Third Proportional to 5,421,136.50 and 7,981,848

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Solution

The third proportional to 5,421,136.50 and 7,981,848 is: 11,752,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,136.50 : 7,981,848 = 7,981,848 : x
  2. Step 2: Convert to fraction form
    5,421,136.50/7,981,848 = 7,981,848/x
  3. Step 3: Cross multiply
    5,421,136.50x = 7,981,848 × 7,981,848
  4. Step 4: Simplify right side
    5,421,136.50x = 63,709,897,495,104
  5. Step 5: Solve for x
    x = 63,709,897,495,104/5,421,136.50
  6. Step 6: Final answer
    x = 11,752,129.37

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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.