Home / 393,451,036.20-590,176,554.30-120,786,373.80

Finding the Fourth Proportional to 393,451,036.20, 590,176,554.30 and 120,786,373.80

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Solution

The fourth proportional to 393,451,036.20, 590,176,554.30 and 120,786,373.80 is: 181,179,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,451,036.20 : 590,176,554.30 = 120,786,373.80 : x
  2. Step 2: Convert to fraction form
    393,451,036.20/590,176,554.30 = 120,786,373.80/x
  3. Step 3: Cross multiply
    393,451,036.20x = 590,176,554.30 × 120,786,373.80
  4. Step 4: Simplify right side
    393,451,036.20x = 71,285,285,895,675,792
  5. Step 5: Solve for x
    x = 71,285,285,895,675,792/393,451,036.20
  6. Step 6: Final answer
    x = 181,179,560.70

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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.