Home / 445,825,812.40-668,100,989.40-328,324,207.30

Finding the Fourth Proportional to 445,825,812.40, 668,100,989.40 and 328,324,207.30

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Solution

The fourth proportional to 445,825,812.40, 668,100,989.40 and 328,324,207.30 is: 492,016,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,825,812.40 : 668,100,989.40 = 328,324,207.30 : x
  2. Step 2: Convert to fraction form
    445,825,812.40/668,100,989.40 = 328,324,207.30/x
  3. Step 3: Cross multiply
    445,825,812.40x = 668,100,989.40 × 328,324,207.30
  4. Step 4: Simplify right side
    445,825,812.40x = 219,353,727,741,100,704
  5. Step 5: Solve for x
    x = 219,353,727,741,100,704/445,825,812.40
  6. Step 6: Final answer
    x = 492,016,661.31

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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.