Home / 354,297,410.40-531,446,115.60-198,691,485.60

Finding the Fourth Proportional to 354,297,410.40, 531,446,115.60 and 198,691,485.60

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Solution

The fourth proportional to 354,297,410.40, 531,446,115.60 and 198,691,485.60 is: 298,037,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,297,410.40 : 531,446,115.60 = 198,691,485.60 : x
  2. Step 2: Convert to fraction form
    354,297,410.40/531,446,115.60 = 198,691,485.60/x
  3. Step 3: Cross multiply
    354,297,410.40x = 531,446,115.60 × 198,691,485.60
  4. Step 4: Simplify right side
    354,297,410.40x = 105,593,818,224,913,344
  5. Step 5: Solve for x
    x = 105,593,818,224,913,344/354,297,410.40
  6. Step 6: Final answer
    x = 298,037,228.40

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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.