Home / 20,551,831.72-30,824,022.29-8,255,299.48

Finding the Fourth Proportional to 20,551,831.72, 30,824,022.29 and 8,255,299.48

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Solution

The fourth proportional to 20,551,831.72, 30,824,022.29 and 8,255,299.48 is: 12,381,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,831.72 : 30,824,022.29 = 8,255,299.48 : x
  2. Step 2: Convert to fraction form
    20,551,831.72/30,824,022.29 = 8,255,299.48/x
  3. Step 3: Cross multiply
    20,551,831.72x = 30,824,022.29 × 8,255,299.48
  4. Step 4: Simplify right side
    20,551,831.72x = 254,461,535,063,808.84
  5. Step 5: Solve for x
    x = 254,461,535,063,808.84/20,551,831.72
  6. Step 6: Final answer
    x = 12,381,452.83

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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.