Home / 988,428,104.76-1,482,728,327.48-324,242,984.46

Finding the Fourth Proportional to 988,428,104.76, 1,482,728,327.48 and 324,242,984.46

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Solution

The fourth proportional to 988,428,104.76, 1,482,728,327.48 and 324,242,984.46 is: 486,392,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,428,104.76 : 1,482,728,327.48 = 324,242,984.46 : x
  2. Step 2: Convert to fraction form
    988,428,104.76/1,482,728,327.48 = 324,242,984.46/x
  3. Step 3: Cross multiply
    988,428,104.76x = 1,482,728,327.48 × 324,242,984.46
  4. Step 4: Simplify right side
    988,428,104.76x = 480,764,258,046,310,016
  5. Step 5: Solve for x
    x = 480,764,258,046,310,016/988,428,104.76
  6. Step 6: Final answer
    x = 486,392,743.92

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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.