Home / 391,344,902.40-587,088,212.40-196,766,637.60

Finding the Fourth Proportional to 391,344,902.40, 587,088,212.40 and 196,766,637.60

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Solution

The fourth proportional to 391,344,902.40, 587,088,212.40 and 196,766,637.60 is: 295,185,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,344,902.40 : 587,088,212.40 = 196,766,637.60 : x
  2. Step 2: Convert to fraction form
    391,344,902.40/587,088,212.40 = 196,766,637.60/x
  3. Step 3: Cross multiply
    391,344,902.40x = 587,088,212.40 × 196,766,637.60
  4. Step 4: Simplify right side
    391,344,902.40x = 115,519,373,528,542,624
  5. Step 5: Solve for x
    x = 115,519,373,528,542,624/391,344,902.40
  6. Step 6: Final answer
    x = 295,185,583.92

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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.