Home / 7,191,496.88-9,924,299.52-3,928,356.80

Finding the Fourth Proportional to 7,191,496.88, 9,924,299.52 and 3,928,356.80

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Solution

The fourth proportional to 7,191,496.88, 9,924,299.52 and 3,928,356.80 is: 5,421,150.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,496.88 : 9,924,299.52 = 3,928,356.80 : x
  2. Step 2: Convert to fraction form
    7,191,496.88/9,924,299.52 = 3,928,356.80/x
  3. Step 3: Cross multiply
    7,191,496.88x = 9,924,299.52 × 3,928,356.80
  4. Step 4: Simplify right side
    7,191,496.88x = 38,986,189,504,628.73
  5. Step 5: Solve for x
    x = 38,986,189,504,628.73/7,191,496.88
  6. Step 6: Final answer
    x = 5,421,150.86

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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.