Home / 641,620,286.73-885,413,086.22-363,155,831.55

Finding the Fourth Proportional to 641,620,286.73, 885,413,086.22 and 363,155,831.55

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Solution

The fourth proportional to 641,620,286.73, 885,413,086.22 and 363,155,831.55 is: 501,142,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,620,286.73 : 885,413,086.22 = 363,155,831.55 : x
  2. Step 2: Convert to fraction form
    641,620,286.73/885,413,086.22 = 363,155,831.55/x
  3. Step 3: Cross multiply
    641,620,286.73x = 885,413,086.22 × 363,155,831.55
  4. Step 4: Simplify right side
    641,620,286.73x = 321,542,925,592,383,808
  5. Step 5: Solve for x
    x = 321,542,925,592,383,808/641,620,286.73
  6. Step 6: Final answer
    x = 501,142,080.83

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1.5x scale

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.