Home / 354,998,551.69-489,946,667.94-204,288,110.20

Finding the Fourth Proportional to 354,998,551.69, 489,946,667.94 and 204,288,110.20

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Solution

The fourth proportional to 354,998,551.69, 489,946,667.94 and 204,288,110.20 is: 281,945,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,551.69 : 489,946,667.94 = 204,288,110.20 : x
  2. Step 2: Convert to fraction form
    354,998,551.69/489,946,667.94 = 204,288,110.20/x
  3. Step 3: Cross multiply
    354,998,551.69x = 489,946,667.94 × 204,288,110.20
  4. Step 4: Simplify right side
    354,998,551.69x = 100,090,278,892,249,520
  5. Step 5: Solve for x
    x = 100,090,278,892,249,520/354,998,551.69
  6. Step 6: Final answer
    x = 281,945,597.85

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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.