Home / 321,408,010.20-482,112,015.30-168,101,059.80

Finding the Fourth Proportional to 321,408,010.20, 482,112,015.30 and 168,101,059.80

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Solution

The fourth proportional to 321,408,010.20, 482,112,015.30 and 168,101,059.80 is: 252,151,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,408,010.20 : 482,112,015.30 = 168,101,059.80 : x
  2. Step 2: Convert to fraction form
    321,408,010.20/482,112,015.30 = 168,101,059.80/x
  3. Step 3: Cross multiply
    321,408,010.20x = 482,112,015.30 × 168,101,059.80
  4. Step 4: Simplify right side
    321,408,010.20x = 81,043,540,714,243,824
  5. Step 5: Solve for x
    x = 81,043,540,714,243,824/321,408,010.20
  6. Step 6: Final answer
    x = 252,151,589.70

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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.