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Finding the Fourth Proportional to 323,393,848.80, 485,111,768.40 and 170,338,840.80

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Solution

The fourth proportional to 323,393,848.80, 485,111,768.40 and 170,338,840.80 is: 255,519,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,393,848.80 : 485,111,768.40 = 170,338,840.80 : x
  2. Step 2: Convert to fraction form
    323,393,848.80/485,111,768.40 = 170,338,840.80/x
  3. Step 3: Cross multiply
    323,393,848.80x = 485,111,768.40 × 170,338,840.80
  4. Step 4: Simplify right side
    323,393,848.80x = 82,633,376,287,694,080
  5. Step 5: Solve for x
    x = 82,633,376,287,694,080/323,393,848.80
  6. Step 6: Final answer
    x = 255,519,319.85

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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.