Home / 19,989,942.80-29,986,744.11-5,612,913.71

Finding the Fourth Proportional to 19,989,942.80, 29,986,744.11 and 5,612,913.71

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Solution

The fourth proportional to 19,989,942.80, 29,986,744.11 and 5,612,913.71 is: 8,419,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,942.80 : 29,986,744.11 = 5,612,913.71 : x
  2. Step 2: Convert to fraction form
    19,989,942.80/29,986,744.11 = 5,612,913.71/x
  3. Step 3: Cross multiply
    19,989,942.80x = 29,986,744.11 × 5,612,913.71
  4. Step 4: Simplify right side
    19,989,942.80x = 168,313,007,208,247.62
  5. Step 5: Solve for x
    x = 168,313,007,208,247.62/19,989,942.80
  6. Step 6: Final answer
    x = 8,419,884.38

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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.