Home / 385,504,412.58-531,482,268.69-306,383,673.33

Finding the Fourth Proportional to 385,504,412.58, 531,482,268.69 and 306,383,673.33

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Solution

The fourth proportional to 385,504,412.58, 531,482,268.69 and 306,383,673.33 is: 422,401,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,504,412.58 : 531,482,268.69 = 306,383,673.33 : x
  2. Step 2: Convert to fraction form
    385,504,412.58/531,482,268.69 = 306,383,673.33/x
  3. Step 3: Cross multiply
    385,504,412.58x = 531,482,268.69 × 306,383,673.33
  4. Step 4: Simplify right side
    385,504,412.58x = 162,837,489,791,004,224
  5. Step 5: Solve for x
    x = 162,837,489,791,004,224/385,504,412.58
  6. Step 6: Final answer
    x = 422,401,104.83

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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.