Home / 489,298,220.27-675,373,829.27-319,777,959.53

Finding the Fourth Proportional to 489,298,220.27, 675,373,829.27 and 319,777,959.53

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Solution

The fourth proportional to 489,298,220.27, 675,373,829.27 and 319,777,959.53 is: 441,386,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,298,220.27 : 675,373,829.27 = 319,777,959.53 : x
  2. Step 2: Convert to fraction form
    489,298,220.27/675,373,829.27 = 319,777,959.53/x
  3. Step 3: Cross multiply
    489,298,220.27x = 675,373,829.27 × 319,777,959.53
  4. Step 4: Simplify right side
    489,298,220.27x = 215,969,665,044,812,224
  5. Step 5: Solve for x
    x = 215,969,665,044,812,224/489,298,220.27
  6. Step 6: Final answer
    x = 441,386,573.87

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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.