Home / 354,998,396.18-489,946,453.25-204,287,954.72

Finding the Fourth Proportional to 354,998,396.18, 489,946,453.25 and 204,287,954.72

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Solution

The fourth proportional to 354,998,396.18, 489,946,453.25 and 204,287,954.72 is: 281,945,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,396.18 : 489,946,453.25 = 204,287,954.72 : x
  2. Step 2: Convert to fraction form
    354,998,396.18/489,946,453.25 = 204,287,954.72/x
  3. Step 3: Cross multiply
    354,998,396.18x = 489,946,453.25 × 204,287,954.72
  4. Step 4: Simplify right side
    354,998,396.18x = 100,090,158,853,289,424
  5. Step 5: Solve for x
    x = 100,090,158,853,289,424/354,998,396.18
  6. Step 6: Final answer
    x = 281,945,383.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.