Home / 6,382,807.20-9,581,209.20-3,989,354.40

Finding the Fourth Proportional to 6,382,807.20, 9,581,209.20 and 3,989,354.40

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Solution

The fourth proportional to 6,382,807.20, 9,581,209.20 and 3,989,354.40 is: 5,988,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,382,807.20 : 9,581,209.20 = 3,989,354.40 : x
  2. Step 2: Convert to fraction form
    6,382,807.20/9,581,209.20 = 3,989,354.40/x
  3. Step 3: Cross multiply
    6,382,807.20x = 9,581,209.20 × 3,989,354.40
  4. Step 4: Simplify right side
    6,382,807.20x = 38,222,839,079,340.48
  5. Step 5: Solve for x
    x = 38,222,839,079,340.48/6,382,807.20
  6. Step 6: Final answer
    x = 5,988,405.71

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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.