Home / 13,991,148.42-20,987,275.59-3,894,651.78

Finding the Fourth Proportional to 13,991,148.42, 20,987,275.59 and 3,894,651.78

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Solution

The fourth proportional to 13,991,148.42, 20,987,275.59 and 3,894,651.78 is: 5,842,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,148.42 : 20,987,275.59 = 3,894,651.78 : x
  2. Step 2: Convert to fraction form
    13,991,148.42/20,987,275.59 = 3,894,651.78/x
  3. Step 3: Cross multiply
    13,991,148.42x = 20,987,275.59 × 3,894,651.78
  4. Step 4: Simplify right side
    13,991,148.42x = 81,738,130,233,944.05
  5. Step 5: Solve for x
    x = 81,738,130,233,944.05/13,991,148.42
  6. Step 6: Final answer
    x = 5,842,131.59

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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.