Home / 5,177,333.78-7,766,233.95-1,981,631.06

Finding the Fourth Proportional to 5,177,333.78, 7,766,233.95 and 1,981,631.06

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Solution

The fourth proportional to 5,177,333.78, 7,766,233.95 and 1,981,631.06 is: 2,972,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177,333.78 : 7,766,233.95 = 1,981,631.06 : x
  2. Step 2: Convert to fraction form
    5,177,333.78/7,766,233.95 = 1,981,631.06/x
  3. Step 3: Cross multiply
    5,177,333.78x = 7,766,233.95 × 1,981,631.06
  4. Step 4: Simplify right side
    5,177,333.78x = 15,389,810,414,546.49
  5. Step 5: Solve for x
    x = 15,389,810,414,546.49/5,177,333.78
  6. Step 6: Final answer
    x = 2,972,535.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.