Home / 398,601,286.20-597,901,929.30-243,633,090.60

Finding the Fourth Proportional to 398,601,286.20, 597,901,929.30 and 243,633,090.60

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Solution

The fourth proportional to 398,601,286.20, 597,901,929.30 and 243,633,090.60 is: 365,449,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,601,286.20 : 597,901,929.30 = 243,633,090.60 : x
  2. Step 2: Convert to fraction form
    398,601,286.20/597,901,929.30 = 243,633,090.60/x
  3. Step 3: Cross multiply
    398,601,286.20x = 597,901,929.30 × 243,633,090.60
  4. Step 4: Simplify right side
    398,601,286.20x = 145,668,694,911,061,664
  5. Step 5: Solve for x
    x = 145,668,694,911,061,664/398,601,286.20
  6. Step 6: Final answer
    x = 365,449,635.90

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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.