Home / 69,679,723.28-104,512,831.18-21,158,003.60

Finding the Fourth Proportional to 69,679,723.28, 104,512,831.18 and 21,158,003.60

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Solution

The fourth proportional to 69,679,723.28, 104,512,831.18 and 21,158,003.60 is: 31,734,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679,723.28 : 104,512,831.18 = 21,158,003.60 : x
  2. Step 2: Convert to fraction form
    69,679,723.28/104,512,831.18 = 21,158,003.60/x
  3. Step 3: Cross multiply
    69,679,723.28x = 104,512,831.18 × 21,158,003.60
  4. Step 4: Simplify right side
    69,679,723.28x = 2,211,282,857,777,172.75
  5. Step 5: Solve for x
    x = 2,211,282,857,777,172.75/69,679,723.28
  6. Step 6: Final answer
    x = 31,734,954.64

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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.