Home / 15,789,050.82-21,786,571.11-8,818,869.49

Finding the Fourth Proportional to 15,789,050.82, 21,786,571.11 and 8,818,869.49

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Solution

The fourth proportional to 15,789,050.82, 21,786,571.11 and 8,818,869.49 is: 12,168,744.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789,050.82 : 21,786,571.11 = 8,818,869.49 : x
  2. Step 2: Convert to fraction form
    15,789,050.82/21,786,571.11 = 8,818,869.49/x
  3. Step 3: Cross multiply
    15,789,050.82x = 21,786,571.11 × 8,818,869.49
  4. Step 4: Simplify right side
    15,789,050.82x = 192,132,927,253,694.44
  5. Step 5: Solve for x
    x = 192,132,927,253,694.44/15,789,050.82
  6. Step 6: Final answer
    x = 12,168,744.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.