Home / 572,264,123.40-789,743,565.54-321,412,720.86

Finding the Fourth Proportional to 572,264,123.40, 789,743,565.54 and 321,412,720.86

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Solution

The fourth proportional to 572,264,123.40, 789,743,565.54 and 321,412,720.86 is: 443,560,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,264,123.40 : 789,743,565.54 = 321,412,720.86 : x
  2. Step 2: Convert to fraction form
    572,264,123.40/789,743,565.54 = 321,412,720.86/x
  3. Step 3: Cross multiply
    572,264,123.40x = 789,743,565.54 × 321,412,720.86
  4. Step 4: Simplify right side
    572,264,123.40x = 253,833,628,181,889,120
  5. Step 5: Solve for x
    x = 253,833,628,181,889,120/572,264,123.40
  6. Step 6: Final answer
    x = 443,560,268.42

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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.