Home / 603,680,188.92-905,711,688.66-215,494,686.84

Finding the Fourth Proportional to 603,680,188.92, 905,711,688.66 and 215,494,686.84

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Solution

The fourth proportional to 603,680,188.92, 905,711,688.66 and 215,494,686.84 is: 323,310,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,680,188.92 : 905,711,688.66 = 215,494,686.84 : x
  2. Step 2: Convert to fraction form
    603,680,188.92/905,711,688.66 = 215,494,686.84/x
  3. Step 3: Cross multiply
    603,680,188.92x = 905,711,688.66 × 215,494,686.84
  4. Step 4: Simplify right side
    603,680,188.92x = 195,176,056,715,114,272
  5. Step 5: Solve for x
    x = 195,176,056,715,114,272/603,680,188.92
  6. Step 6: Final answer
    x = 323,310,355.88

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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.