Home / 3,960,481-5,465,561.70-2,149,640.68

Finding the Fourth Proportional to 3,960,481, 5,465,561.70 and 2,149,640.68

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Solution

The fourth proportional to 3,960,481, 5,465,561.70 and 2,149,640.68 is: 2,966,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960,481 : 5,465,561.70 = 2,149,640.68 : x
  2. Step 2: Convert to fraction form
    3,960,481/5,465,561.70 = 2,149,640.68/x
  3. Step 3: Cross multiply
    3,960,481x = 5,465,561.70 × 2,149,640.68
  4. Step 4: Simplify right side
    3,960,481x = 11,748,993,769,369.96
  5. Step 5: Solve for x
    x = 11,748,993,769,369.96/3,960,481
  6. Step 6: Final answer
    x = 2,966,557.29

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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.