Home / 20,227,015.14-27,906,665.67-12,378,345.42

Finding the Fourth Proportional to 20,227,015.14, 27,906,665.67 and 12,378,345.42

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Solution

The fourth proportional to 20,227,015.14, 27,906,665.67 and 12,378,345.42 is: 17,078,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227,015.14 : 27,906,665.67 = 12,378,345.42 : x
  2. Step 2: Convert to fraction form
    20,227,015.14/27,906,665.67 = 12,378,345.42/x
  3. Step 3: Cross multiply
    20,227,015.14x = 27,906,665.67 × 12,378,345.42
  4. Step 4: Simplify right side
    20,227,015.14x = 345,438,347,183,715.75
  5. Step 5: Solve for x
    x = 345,438,347,183,715.75/20,227,015.14
  6. Step 6: Final answer
    x = 17,078,068.36

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1.5x scale

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.