Home / 394,570,537.23-544,485,187.05-215,954,061.80

Finding the Fourth Proportional to 394,570,537.23, 544,485,187.05 and 215,954,061.80

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Solution

The fourth proportional to 394,570,537.23, 544,485,187.05 and 215,954,061.80 is: 298,004,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,570,537.23 : 544,485,187.05 = 215,954,061.80 : x
  2. Step 2: Convert to fraction form
    394,570,537.23/544,485,187.05 = 215,954,061.80/x
  3. Step 3: Cross multiply
    394,570,537.23x = 544,485,187.05 × 215,954,061.80
  4. Step 4: Simplify right side
    394,570,537.23x = 117,583,787,735,819,104
  5. Step 5: Solve for x
    x = 117,583,787,735,819,104/394,570,537.23
  6. Step 6: Final answer
    x = 298,004,479.91

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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.