Home / 7,218,570-9,961,629-3,955,358.22

Finding the Fourth Proportional to 7,218,570, 9,961,629 and 3,955,358.22

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Solution

The fourth proportional to 7,218,570, 9,961,629 and 3,955,358.22 is: 5,458,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,570 : 9,961,629 = 3,955,358.22 : x
  2. Step 2: Convert to fraction form
    7,218,570/9,961,629 = 3,955,358.22/x
  3. Step 3: Cross multiply
    7,218,570x = 9,961,629 × 3,955,358.22
  4. Step 4: Simplify right side
    7,218,570x = 39,401,811,149,740.38
  5. Step 5: Solve for x
    x = 39,401,811,149,740.38/7,218,570
  6. Step 6: Final answer
    x = 5,458,395.66

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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.