Home / 13,991,147.92-20,987,274.84-3,894,651.28

Finding the Fourth Proportional to 13,991,147.92, 20,987,274.84 and 3,894,651.28

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Solution

The fourth proportional to 13,991,147.92, 20,987,274.84 and 3,894,651.28 is: 5,842,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,147.92 : 20,987,274.84 = 3,894,651.28 : x
  2. Step 2: Convert to fraction form
    13,991,147.92/20,987,274.84 = 3,894,651.28/x
  3. Step 3: Cross multiply
    13,991,147.92x = 20,987,274.84 × 3,894,651.28
  4. Step 4: Simplify right side
    13,991,147.92x = 81,738,116,819,317.80
  5. Step 5: Solve for x
    x = 81,738,116,819,317.80/13,991,147.92
  6. Step 6: Final answer
    x = 5,842,130.84

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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.