Home / 880,779,268.80-1,321,126,912.80-298,456,401.60

Finding the Fourth Proportional to 880,779,268.80, 1,321,126,912.80 and 298,456,401.60

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Solution

The fourth proportional to 880,779,268.80, 1,321,126,912.80 and 298,456,401.60 is: 447,670,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,779,268.80 : 1,321,126,912.80 = 298,456,401.60 : x
  2. Step 2: Convert to fraction form
    880,779,268.80/1,321,126,912.80 = 298,456,401.60/x
  3. Step 3: Cross multiply
    880,779,268.80x = 1,321,126,912.80 × 298,456,401.60
  4. Step 4: Simplify right side
    880,779,268.80x = 394,298,784,451,204,992
  5. Step 5: Solve for x
    x = 394,298,784,451,204,992/880,779,268.80
  6. Step 6: Final answer
    x = 447,670,373.75

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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.