Home / 354,998,453.90-489,946,532.90-204,288,012.36

Finding the Fourth Proportional to 354,998,453.90, 489,946,532.90 and 204,288,012.36

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Solution

The fourth proportional to 354,998,453.90, 489,946,532.90 and 204,288,012.36 is: 281,945,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,453.90 : 489,946,532.90 = 204,288,012.36 : x
  2. Step 2: Convert to fraction form
    354,998,453.90/489,946,532.90 = 204,288,012.36/x
  3. Step 3: Cross multiply
    354,998,453.90x = 489,946,532.90 × 204,288,012.36
  4. Step 4: Simplify right side
    354,998,453.90x = 100,090,203,367,792,912
  5. Step 5: Solve for x
    x = 100,090,203,367,792,912/354,998,453.90
  6. Step 6: Final answer
    x = 281,945,462.77

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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.