Home / 641,620,287.73-885,413,087.60-363,155,832.55

Finding the Fourth Proportional to 641,620,287.73, 885,413,087.60 and 363,155,832.55

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Solution

The fourth proportional to 641,620,287.73, 885,413,087.60 and 363,155,832.55 is: 501,142,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,620,287.73 : 885,413,087.60 = 363,155,832.55 : x
  2. Step 2: Convert to fraction form
    641,620,287.73/885,413,087.60 = 363,155,832.55/x
  3. Step 3: Cross multiply
    641,620,287.73x = 885,413,087.60 × 363,155,832.55
  4. Step 4: Simplify right side
    641,620,287.73x = 321,542,926,978,044,096
  5. Step 5: Solve for x
    x = 321,542,926,978,044,096/641,620,287.73
  6. Step 6: Final answer
    x = 501,142,082.21

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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.