Home / 354,998,435.33-489,946,507.21-204,287,993.80

Finding the Fourth Proportional to 354,998,435.33, 489,946,507.21 and 204,287,993.80

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Solution

The fourth proportional to 354,998,435.33, 489,946,507.21 and 204,287,993.80 is: 281,945,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,435.33 : 489,946,507.21 = 204,287,993.80 : x
  2. Step 2: Convert to fraction form
    354,998,435.33/489,946,507.21 = 204,287,993.80/x
  3. Step 3: Cross multiply
    354,998,435.33x = 489,946,507.21 × 204,287,993.80
  4. Step 4: Simplify right side
    354,998,435.33x = 100,090,189,026,278,640
  5. Step 5: Solve for x
    x = 100,090,189,026,278,640/354,998,435.33
  6. Step 6: Final answer
    x = 281,945,437.12

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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.