Home / 218,426,475.20-327,639,712.80-196,507,486.40

Finding the Fourth Proportional to 218,426,475.20, 327,639,712.80 and 196,507,486.40

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Solution

The fourth proportional to 218,426,475.20, 327,639,712.80 and 196,507,486.40 is: 294,761,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,426,475.20 : 327,639,712.80 = 196,507,486.40 : x
  2. Step 2: Convert to fraction form
    218,426,475.20/327,639,712.80 = 196,507,486.40/x
  3. Step 3: Cross multiply
    218,426,475.20x = 327,639,712.80 × 196,507,486.40
  4. Step 4: Simplify right side
    218,426,475.20x = 64,383,656,407,145,912
  5. Step 5: Solve for x
    x = 64,383,656,407,145,912/218,426,475.20
  6. Step 6: Final answer
    x = 294,761,229.60

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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.