Home / 354,998,550.69-489,946,666.56-204,288,109.20

Finding the Fourth Proportional to 354,998,550.69, 489,946,666.56 and 204,288,109.20

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Solution

The fourth proportional to 354,998,550.69, 489,946,666.56 and 204,288,109.20 is: 281,945,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,550.69 : 489,946,666.56 = 204,288,109.20 : x
  2. Step 2: Convert to fraction form
    354,998,550.69/489,946,666.56 = 204,288,109.20/x
  3. Step 3: Cross multiply
    354,998,550.69x = 489,946,666.56 × 204,288,109.20
  4. Step 4: Simplify right side
    354,998,550.69x = 100,090,278,120,385,264
  5. Step 5: Solve for x
    x = 100,090,278,120,385,264/354,998,550.69
  6. Step 6: Final answer
    x = 281,945,596.47

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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.