Home / 354,853,452.72-489,697,736.04-198,220,557.72

Finding the Fourth Proportional to 354,853,452.72, 489,697,736.04 and 198,220,557.72

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Solution

The fourth proportional to 354,853,452.72, 489,697,736.04 and 198,220,557.72 is: 273,544,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,853,452.72 : 489,697,736.04 = 198,220,557.72 : x
  2. Step 2: Convert to fraction form
    354,853,452.72/489,697,736.04 = 198,220,557.72/x
  3. Step 3: Cross multiply
    354,853,452.72x = 489,697,736.04 × 198,220,557.72
  4. Step 4: Simplify right side
    354,853,452.72x = 97,068,158,352,070,144
  5. Step 5: Solve for x
    x = 97,068,158,352,070,144/354,853,452.72
  6. Step 6: Final answer
    x = 273,544,353.61

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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.