Home / 3,988,399.80-5,981,433.30-1,429,318.20

Finding the Fourth Proportional to 3,988,399.80, 5,981,433.30 and 1,429,318.20

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Solution

The fourth proportional to 3,988,399.80, 5,981,433.30 and 1,429,318.20 is: 2,143,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,399.80 : 5,981,433.30 = 1,429,318.20 : x
  2. Step 2: Convert to fraction form
    3,988,399.80/5,981,433.30 = 1,429,318.20/x
  3. Step 3: Cross multiply
    3,988,399.80x = 5,981,433.30 × 1,429,318.20
  4. Step 4: Simplify right side
    3,988,399.80x = 8,549,371,477,776.06
  5. Step 5: Solve for x
    x = 8,549,371,477,776.06/3,988,399.80
  6. Step 6: Final answer
    x = 2,143,559.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.