Home / 572,264,124.40-789,743,566.92-321,412,721.86

Finding the Fourth Proportional to 572,264,124.40, 789,743,566.92 and 321,412,721.86

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Solution

The fourth proportional to 572,264,124.40, 789,743,566.92 and 321,412,721.86 is: 443,560,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,264,124.40 : 789,743,566.92 = 321,412,721.86 : x
  2. Step 2: Convert to fraction form
    572,264,124.40/789,743,566.92 = 321,412,721.86/x
  3. Step 3: Cross multiply
    572,264,124.40x = 789,743,566.92 × 321,412,721.86
  4. Step 4: Simplify right side
    572,264,124.40x = 253,833,629,415,182,240
  5. Step 5: Solve for x
    x = 253,833,629,415,182,240/572,264,124.40
  6. Step 6: Final answer
    x = 443,560,269.80

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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.