Home / 15,912,997.04-21,962,569.56-9,388,221.68

Finding the Fourth Proportional to 15,912,997.04, 21,962,569.56 and 9,388,221.68

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Solution

The fourth proportional to 15,912,997.04, 21,962,569.56 and 9,388,221.68 is: 12,957,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912,997.04 : 21,962,569.56 = 9,388,221.68 : x
  2. Step 2: Convert to fraction form
    15,912,997.04/21,962,569.56 = 9,388,221.68/x
  3. Step 3: Cross multiply
    15,912,997.04x = 21,962,569.56 × 9,388,221.68
  4. Step 4: Simplify right side
    15,912,997.04x = 206,189,471,691,700.03
  5. Step 5: Solve for x
    x = 206,189,471,691,700.03/15,912,997.04
  6. Step 6: Final answer
    x = 12,957,299.69

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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.