Home / 783,000,869.70-1,080,276,766.43-443,872,987.52

Finding the Fourth Proportional to 783,000,869.70, 1,080,276,766.43 and 443,872,987.52

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Solution

The fourth proportional to 783,000,869.70, 1,080,276,766.43 and 443,872,987.52 is: 612,394,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,000,869.70 : 1,080,276,766.43 = 443,872,987.52 : x
  2. Step 2: Convert to fraction form
    783,000,869.70/1,080,276,766.43 = 443,872,987.52/x
  3. Step 3: Cross multiply
    783,000,869.70x = 1,080,276,766.43 × 443,872,987.52
  4. Step 4: Simplify right side
    783,000,869.70x = 479,505,675,663,729,344
  5. Step 5: Solve for x
    x = 479,505,675,663,729,344/783,000,869.70
  6. Step 6: Final answer
    x = 612,394,818.73

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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.