Home / 20,157,470.82-27,819,671.33-11,456,951.28

Finding the Fourth Proportional to 20,157,470.82, 27,819,671.33 and 11,456,951.28

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Solution

The fourth proportional to 20,157,470.82, 27,819,671.33 and 11,456,951.28 is: 15,811,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,470.82 : 27,819,671.33 = 11,456,951.28 : x
  2. Step 2: Convert to fraction form
    20,157,470.82/27,819,671.33 = 11,456,951.28/x
  3. Step 3: Cross multiply
    20,157,470.82x = 27,819,671.33 × 11,456,951.28
  4. Step 4: Simplify right side
    20,157,470.82x = 318,728,618,996,138
  5. Step 5: Solve for x
    x = 318,728,618,996,138/20,157,470.82
  6. Step 6: Final answer
    x = 15,811,935.03

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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.