Home / 7,218,561.61-9,961,617.43-3,955,349.85

Finding the Fourth Proportional to 7,218,561.61, 9,961,617.43 and 3,955,349.85

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Solution

The fourth proportional to 7,218,561.61, 9,961,617.43 and 3,955,349.85 is: 5,458,384.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,561.61 : 9,961,617.43 = 3,955,349.85 : x
  2. Step 2: Convert to fraction form
    7,218,561.61/9,961,617.43 = 3,955,349.85/x
  3. Step 3: Cross multiply
    7,218,561.61x = 9,961,617.43 × 3,955,349.85
  4. Step 4: Simplify right side
    7,218,561.61x = 39,401,682,007,507.88
  5. Step 5: Solve for x
    x = 39,401,682,007,507.88/7,218,561.61
  6. Step 6: Final answer
    x = 5,458,384.11

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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.