Home / 712,313,324.10-982,992,480.45-394,794,069.63

Finding the Fourth Proportional to 712,313,324.10, 982,992,480.45 and 394,794,069.63

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Solution

The fourth proportional to 712,313,324.10, 982,992,480.45 and 394,794,069.63 is: 544,815,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,313,324.10 : 982,992,480.45 = 394,794,069.63 : x
  2. Step 2: Convert to fraction form
    712,313,324.10/982,992,480.45 = 394,794,069.63/x
  3. Step 3: Cross multiply
    712,313,324.10x = 982,992,480.45 × 394,794,069.63
  4. Step 4: Simplify right side
    712,313,324.10x = 388,079,601,772,543,744
  5. Step 5: Solve for x
    x = 388,079,601,772,543,744/712,313,324.10
  6. Step 6: Final answer
    x = 544,815,867.74

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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.