Home / 354,328,190.80-531,492,286.20-281,148,765.10

Finding the Fourth Proportional to 354,328,190.80, 531,492,286.20 and 281,148,765.10

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Solution

The fourth proportional to 354,328,190.80, 531,492,286.20 and 281,148,765.10 is: 421,723,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,328,190.80 : 531,492,286.20 = 281,148,765.10 : x
  2. Step 2: Convert to fraction form
    354,328,190.80/531,492,286.20 = 281,148,765.10/x
  3. Step 3: Cross multiply
    354,328,190.80x = 531,492,286.20 × 281,148,765.10
  4. Step 4: Simplify right side
    354,328,190.80x = 149,428,399,925,305,792
  5. Step 5: Solve for x
    x = 149,428,399,925,305,792/354,328,190.80
  6. Step 6: Final answer
    x = 421,723,147.65

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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.