Home / 354,998,447.12-489,946,523.55-204,288,005.59

Finding the Fourth Proportional to 354,998,447.12, 489,946,523.55 and 204,288,005.59

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Solution

The fourth proportional to 354,998,447.12, 489,946,523.55 and 204,288,005.59 is: 281,945,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,447.12 : 489,946,523.55 = 204,288,005.59 : x
  2. Step 2: Convert to fraction form
    354,998,447.12/489,946,523.55 = 204,288,005.59/x
  3. Step 3: Cross multiply
    354,998,447.12x = 489,946,523.55 × 204,288,005.59
  4. Step 4: Simplify right side
    354,998,447.12x = 100,090,198,139,792,528
  5. Step 5: Solve for x
    x = 100,090,198,139,792,528/354,998,447.12
  6. Step 6: Final answer
    x = 281,945,453.43

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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.