Home / 394,446,809.28-544,352,619.78-218,231,934.72

Finding the Fourth Proportional to 394,446,809.28, 544,352,619.78 and 218,231,934.72

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Solution

The fourth proportional to 394,446,809.28, 544,352,619.78 and 218,231,934.72 is: 301,168,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,446,809.28 : 544,352,619.78 = 218,231,934.72 : x
  2. Step 2: Convert to fraction form
    394,446,809.28/544,352,619.78 = 218,231,934.72/x
  3. Step 3: Cross multiply
    394,446,809.28x = 544,352,619.78 × 218,231,934.72
  4. Step 4: Simplify right side
    394,446,809.28x = 118,795,125,384,489,936
  5. Step 5: Solve for x
    x = 118,795,125,384,489,936/394,446,809.28
  6. Step 6: Final answer
    x = 301,168,934.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.