Home / 393,984,121.40-590,976,182.10-178,993,273.40

Finding the Fourth Proportional to 393,984,121.40, 590,976,182.10 and 178,993,273.40

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Solution

The fourth proportional to 393,984,121.40, 590,976,182.10 and 178,993,273.40 is: 268,489,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,121.40 : 590,976,182.10 = 178,993,273.40 : x
  2. Step 2: Convert to fraction form
    393,984,121.40/590,976,182.10 = 178,993,273.40/x
  3. Step 3: Cross multiply
    393,984,121.40x = 590,976,182.10 × 178,993,273.40
  4. Step 4: Simplify right side
    393,984,121.40x = 105,780,761,335,513,488
  5. Step 5: Solve for x
    x = 105,780,761,335,513,488/393,984,121.40
  6. Step 6: Final answer
    x = 268,489,910.10

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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.