Home / 712,193,457.36-982,832,741.82-394,659,007.30

Finding the Fourth Proportional to 712,193,457.36, 982,832,741.82 and 394,659,007.30

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Solution

The fourth proportional to 712,193,457.36, 982,832,741.82 and 394,659,007.30 is: 544,632,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,193,457.36 : 982,832,741.82 = 394,659,007.30 : x
  2. Step 2: Convert to fraction form
    712,193,457.36/982,832,741.82 = 394,659,007.30/x
  3. Step 3: Cross multiply
    712,193,457.36x = 982,832,741.82 × 394,659,007.30
  4. Step 4: Simplify right side
    712,193,457.36x = 387,883,794,228,618,432
  5. Step 5: Solve for x
    x = 387,883,794,228,618,432/712,193,457.36
  6. Step 6: Final answer
    x = 544,632,627.86

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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.