Home / 281,667,315.40-421,934,102.70-195,503,014.60

Finding the Fourth Proportional to 281,667,315.40, 421,934,102.70 and 195,503,014.60

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Solution

The fourth proportional to 281,667,315.40, 421,934,102.70 and 195,503,014.60 is: 292,861,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,667,315.40 : 421,934,102.70 = 195,503,014.60 : x
  2. Step 2: Convert to fraction form
    281,667,315.40/421,934,102.70 = 195,503,014.60/x
  3. Step 3: Cross multiply
    281,667,315.40x = 421,934,102.70 × 195,503,014.60
  4. Step 4: Simplify right side
    281,667,315.40x = 82,489,389,040,396,000
  5. Step 5: Solve for x
    x = 82,489,389,040,396,000/281,667,315.40
  6. Step 6: Final answer
    x = 292,861,061.72

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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.