Home / 489,298,222.26-675,373,832.02-319,777,961.54

Finding the Fourth Proportional to 489,298,222.26, 675,373,832.02 and 319,777,961.54

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Solution

The fourth proportional to 489,298,222.26, 675,373,832.02 and 319,777,961.54 is: 441,386,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,298,222.26 : 675,373,832.02 = 319,777,961.54 : x
  2. Step 2: Convert to fraction form
    489,298,222.26/675,373,832.02 = 319,777,961.54/x
  3. Step 3: Cross multiply
    489,298,222.26x = 675,373,832.02 × 319,777,961.54
  4. Step 4: Simplify right side
    489,298,222.26x = 215,969,667,280,813,984
  5. Step 5: Solve for x
    x = 215,969,667,280,813,984/489,298,222.26
  6. Step 6: Final answer
    x = 441,386,576.64

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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.