Home / 7,218,571.50-9,961,631.07-3,955,359.72

Finding the Fourth Proportional to 7,218,571.50, 9,961,631.07 and 3,955,359.72

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Solution

The fourth proportional to 7,218,571.50, 9,961,631.07 and 3,955,359.72 is: 5,458,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,571.50 : 9,961,631.07 = 3,955,359.72 : x
  2. Step 2: Convert to fraction form
    7,218,571.50/9,961,631.07 = 3,955,359.72/x
  3. Step 3: Cross multiply
    7,218,571.50x = 9,961,631.07 × 3,955,359.72
  4. Step 4: Simplify right side
    7,218,571.50x = 39,401,834,279,778.50
  5. Step 5: Solve for x
    x = 39,401,834,279,778.50/7,218,571.50
  6. Step 6: Final answer
    x = 5,458,397.73

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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.