Home / 393,944,990.46-590,981,702.69-121,315,757.46

Finding the Fourth Proportional to 393,944,990.46, 590,981,702.69 and 121,315,757.46

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Solution

The fourth proportional to 393,944,990.46, 590,981,702.69 and 121,315,757.46 is: 181,993,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,944,990.46 : 590,981,702.69 = 121,315,757.46 : x
  2. Step 2: Convert to fraction form
    393,944,990.46/590,981,702.69 = 121,315,757.46/x
  3. Step 3: Cross multiply
    393,944,990.46x = 590,981,702.69 × 121,315,757.46
  4. Step 4: Simplify right side
    393,944,990.46x = 71,695,392,906,837,872
  5. Step 5: Solve for x
    x = 71,695,392,906,837,872/393,944,990.46
  6. Step 6: Final answer
    x = 181,993,411.88

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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.