Home / 399,395,632.80-599,093,449.20-326,836,221.60

Finding the Fourth Proportional to 399,395,632.80, 599,093,449.20 and 326,836,221.60

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Solution

The fourth proportional to 399,395,632.80, 599,093,449.20 and 326,836,221.60 is: 490,254,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,395,632.80 : 599,093,449.20 = 326,836,221.60 : x
  2. Step 2: Convert to fraction form
    399,395,632.80/599,093,449.20 = 326,836,221.60/x
  3. Step 3: Cross multiply
    399,395,632.80x = 599,093,449.20 × 326,836,221.60
  4. Step 4: Simplify right side
    399,395,632.80x = 195,805,439,321,839,584
  5. Step 5: Solve for x
    x = 195,805,439,321,839,584/399,395,632.80
  6. Step 6: Final answer
    x = 490,254,332.40

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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.