Home / 327,943,510.80-491,915,266.20-85,606,414.80

Finding the Fourth Proportional to 327,943,510.80, 491,915,266.20 and 85,606,414.80

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Solution

The fourth proportional to 327,943,510.80, 491,915,266.20 and 85,606,414.80 is: 128,409,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,943,510.80 : 491,915,266.20 = 85,606,414.80 : x
  2. Step 2: Convert to fraction form
    327,943,510.80/491,915,266.20 = 85,606,414.80/x
  3. Step 3: Cross multiply
    327,943,510.80x = 491,915,266.20 × 85,606,414.80
  4. Step 4: Simplify right side
    327,943,510.80x = 42,111,102,324,769,616
  5. Step 5: Solve for x
    x = 42,111,102,324,769,616/327,943,510.80
  6. Step 6: Final answer
    x = 128,409,622.20

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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.