Home / 12,549,911.75-18,832,831.05-5,361,499.73

Finding the Fourth Proportional to 12,549,911.75, 18,832,831.05 and 5,361,499.73

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Solution

The fourth proportional to 12,549,911.75, 18,832,831.05 and 5,361,499.73 is: 8,045,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549,911.75 : 18,832,831.05 = 5,361,499.73 : x
  2. Step 2: Convert to fraction form
    12,549,911.75/18,832,831.05 = 5,361,499.73/x
  3. Step 3: Cross multiply
    12,549,911.75x = 18,832,831.05 × 5,361,499.73
  4. Step 4: Simplify right side
    12,549,911.75x = 100,972,218,589,710.62
  5. Step 5: Solve for x
    x = 100,972,218,589,710.62/12,549,911.75
  6. Step 6: Final answer
    x = 8,045,651.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.