Home / 393,604,780.62-590,409,378.03-131,288,611.42

Finding the Fourth Proportional to 393,604,780.62, 590,409,378.03 and 131,288,611.42

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Solution

The fourth proportional to 393,604,780.62, 590,409,378.03 and 131,288,611.42 is: 196,933,653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,604,780.62 : 590,409,378.03 = 131,288,611.42 : x
  2. Step 2: Convert to fraction form
    393,604,780.62/590,409,378.03 = 131,288,611.42/x
  3. Step 3: Cross multiply
    393,604,780.62x = 590,409,378.03 × 131,288,611.42
  4. Step 4: Simplify right side
    393,604,780.62x = 77,514,027,410,248,112
  5. Step 5: Solve for x
    x = 77,514,027,410,248,112/393,604,780.62
  6. Step 6: Final answer
    x = 196,933,653.32

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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.