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Finding the Fourth Proportional to 325,960,657.80, 488,940,986.70 and 196,501,630.20

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Solution

The fourth proportional to 325,960,657.80, 488,940,986.70 and 196,501,630.20 is: 294,752,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,960,657.80 : 488,940,986.70 = 196,501,630.20 : x
  2. Step 2: Convert to fraction form
    325,960,657.80/488,940,986.70 = 196,501,630.20/x
  3. Step 3: Cross multiply
    325,960,657.80x = 488,940,986.70 × 196,501,630.20
  4. Step 4: Simplify right side
    325,960,657.80x = 96,077,700,958,146,512
  5. Step 5: Solve for x
    x = 96,077,700,958,146,512/325,960,657.80
  6. Step 6: Final answer
    x = 294,752,445.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.