Home / 168,815,201.20-253,222,801.80-82,721,759.20

Finding the Fourth Proportional to 168,815,201.20, 253,222,801.80 and 82,721,759.20

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Solution

The fourth proportional to 168,815,201.20, 253,222,801.80 and 82,721,759.20 is: 124,082,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,815,201.20 : 253,222,801.80 = 82,721,759.20 : x
  2. Step 2: Convert to fraction form
    168,815,201.20/253,222,801.80 = 82,721,759.20/x
  3. Step 3: Cross multiply
    168,815,201.20x = 253,222,801.80 × 82,721,759.20
  4. Step 4: Simplify right side
    168,815,201.20x = 20,947,035,634,448,928
  5. Step 5: Solve for x
    x = 20,947,035,634,448,928/168,815,201.20
  6. Step 6: Final answer
    x = 124,082,638.80

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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.