Home / 712,193,457.58-982,832,742.14-394,659,007.53

Finding the Fourth Proportional to 712,193,457.58, 982,832,742.14 and 394,659,007.53

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Solution

The fourth proportional to 712,193,457.58, 982,832,742.14 and 394,659,007.53 is: 544,632,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,193,457.58 : 982,832,742.14 = 394,659,007.53 : x
  2. Step 2: Convert to fraction form
    712,193,457.58/982,832,742.14 = 394,659,007.53/x
  3. Step 3: Cross multiply
    712,193,457.58x = 982,832,742.14 × 394,659,007.53
  4. Step 4: Simplify right side
    712,193,457.58x = 387,883,794,579,209,024
  5. Step 5: Solve for x
    x = 387,883,794,579,209,024/712,193,457.58
  6. Step 6: Final answer
    x = 544,632,628.18

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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.