Home / 712,193,459.58-982,832,744.90-394,659,009.52

Finding the Fourth Proportional to 712,193,459.58, 982,832,744.90 and 394,659,009.52

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Solution

The fourth proportional to 712,193,459.58, 982,832,744.90 and 394,659,009.52 is: 544,632,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,193,459.58 : 982,832,744.90 = 394,659,009.52 : x
  2. Step 2: Convert to fraction form
    712,193,459.58/982,832,744.90 = 394,659,009.52/x
  3. Step 3: Cross multiply
    712,193,459.58x = 982,832,744.90 × 394,659,009.52
  4. Step 4: Simplify right side
    712,193,459.58x = 387,883,797,626,056,832
  5. Step 5: Solve for x
    x = 387,883,797,626,056,832/712,193,459.58
  6. Step 6: Final answer
    x = 544,632,630.94

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1.5x scale

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.