Home / 13,981,151.12-19,289,374.44-11,398,391.60

Finding the Fourth Proportional to 13,981,151.12, 19,289,374.44 and 11,398,391.60

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Solution

The fourth proportional to 13,981,151.12, 19,289,374.44 and 11,398,391.60 is: 15,726,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981,151.12 : 19,289,374.44 = 11,398,391.60 : x
  2. Step 2: Convert to fraction form
    13,981,151.12/19,289,374.44 = 11,398,391.60/x
  3. Step 3: Cross multiply
    13,981,151.12x = 19,289,374.44 × 11,398,391.60
  4. Step 4: Simplify right side
    13,981,151.12x = 219,867,843,586,150.72
  5. Step 5: Solve for x
    x = 219,867,843,586,150.72/13,981,151.12
  6. Step 6: Final answer
    x = 15,726,018.67

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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.