Home / 393,042,215.36-589,252,679.04-196,204,606.40

Finding the Fourth Proportional to 393,042,215.36, 589,252,679.04 and 196,204,606.40

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Solution

The fourth proportional to 393,042,215.36, 589,252,679.04 and 196,204,606.40 is: 294,151,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,042,215.36 : 589,252,679.04 = 196,204,606.40 : x
  2. Step 2: Convert to fraction form
    393,042,215.36/589,252,679.04 = 196,204,606.40/x
  3. Step 3: Cross multiply
    393,042,215.36x = 589,252,679.04 × 196,204,606.40
  4. Step 4: Simplify right side
    393,042,215.36x = 115,614,089,961,188,720
  5. Step 5: Solve for x
    x = 115,614,089,961,188,720/393,042,215.36
  6. Step 6: Final answer
    x = 294,151,837.75

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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.