Home / 393,455,480.40-590,561,134.20-199,585,803.60

Finding the Fourth Proportional to 393,455,480.40, 590,561,134.20 and 199,585,803.60

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Solution

The fourth proportional to 393,455,480.40, 590,561,134.20 and 199,585,803.60 is: 299,570,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,455,480.40 : 590,561,134.20 = 199,585,803.60 : x
  2. Step 2: Convert to fraction form
    393,455,480.40/590,561,134.20 = 199,585,803.60/x
  3. Step 3: Cross multiply
    393,455,480.40x = 590,561,134.20 × 199,585,803.60
  4. Step 4: Simplify right side
    393,455,480.40x = 117,867,618,544,234,448
  5. Step 5: Solve for x
    x = 117,867,618,544,234,448/393,455,480.40
  6. Step 6: Final answer
    x = 299,570,407.37

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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.