Home / 20,668,901.73-28,521,230.46-11,967,661.62

Finding the Fourth Proportional to 20,668,901.73, 28,521,230.46 and 11,967,661.62

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Solution

The fourth proportional to 20,668,901.73, 28,521,230.46 and 11,967,661.62 is: 16,514,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,901.73 : 28,521,230.46 = 11,967,661.62 : x
  2. Step 2: Convert to fraction form
    20,668,901.73/28,521,230.46 = 11,967,661.62/x
  3. Step 3: Cross multiply
    20,668,901.73x = 28,521,230.46 × 11,967,661.62
  4. Step 4: Simplify right side
    20,668,901.73x = 341,332,435,131,316.94
  5. Step 5: Solve for x
    x = 341,332,435,131,316.94/20,668,901.73
  6. Step 6: Final answer
    x = 16,514,299.58

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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.