Home / 20,157,571.91-27,816,648.01-11,900,294.01

Finding the Fourth Proportional to 20,157,571.91, 27,816,648.01 and 11,900,294.01

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Solution

The fourth proportional to 20,157,571.91, 27,816,648.01 and 11,900,294.01 is: 16,421,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,571.91 : 27,816,648.01 = 11,900,294.01 : x
  2. Step 2: Convert to fraction form
    20,157,571.91/27,816,648.01 = 11,900,294.01/x
  3. Step 3: Cross multiply
    20,157,571.91x = 27,816,648.01 × 11,900,294.01
  4. Step 4: Simplify right side
    20,157,571.91x = 331,026,289,661,930.69
  5. Step 5: Solve for x
    x = 331,026,289,661,930.69/20,157,571.91
  6. Step 6: Final answer
    x = 16,421,932.72

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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.