Home / 783,000,871.33-1,080,276,768.67-443,872,989.15

Finding the Fourth Proportional to 783,000,871.33, 1,080,276,768.67 and 443,872,989.15

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Solution

The fourth proportional to 783,000,871.33, 1,080,276,768.67 and 443,872,989.15 is: 612,394,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,000,871.33 : 1,080,276,768.67 = 443,872,989.15 : x
  2. Step 2: Convert to fraction form
    783,000,871.33/1,080,276,768.67 = 443,872,989.15/x
  3. Step 3: Cross multiply
    783,000,871.33x = 1,080,276,768.67 × 443,872,989.15
  4. Step 4: Simplify right side
    783,000,871.33x = 479,505,678,418,856,000
  5. Step 5: Solve for x
    x = 479,505,678,418,856,000/783,000,871.33
  6. Step 6: Final answer
    x = 612,394,820.97

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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.