Home / 445,825,806.90-668,100,981.15-328,324,201.80

Finding the Fourth Proportional to 445,825,806.90, 668,100,981.15 and 328,324,201.80

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Solution

The fourth proportional to 445,825,806.90, 668,100,981.15 and 328,324,201.80 is: 492,016,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,825,806.90 : 668,100,981.15 = 328,324,201.80 : x
  2. Step 2: Convert to fraction form
    445,825,806.90/668,100,981.15 = 328,324,201.80/x
  3. Step 3: Cross multiply
    445,825,806.90x = 668,100,981.15 × 328,324,201.80
  4. Step 4: Simplify right side
    445,825,806.90x = 219,353,721,357,870,592
  5. Step 5: Solve for x
    x = 219,353,721,357,870,592/445,825,806.90
  6. Step 6: Final answer
    x = 492,016,653.06

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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.