Home / 154,923,269.82-213,794,112.06-85,308,485.10

Finding the Fourth Proportional to 154,923,269.82, 213,794,112.06 and 85,308,485.10

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Solution

The fourth proportional to 154,923,269.82, 213,794,112.06 and 85,308,485.10 is: 117,725,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,923,269.82 : 213,794,112.06 = 85,308,485.10 : x
  2. Step 2: Convert to fraction form
    154,923,269.82/213,794,112.06 = 85,308,485.10/x
  3. Step 3: Cross multiply
    154,923,269.82x = 213,794,112.06 × 85,308,485.10
  4. Step 4: Simplify right side
    154,923,269.82x = 18,238,451,823,138,240
  5. Step 5: Solve for x
    x = 18,238,451,823,138,240/154,923,269.82
  6. Step 6: Final answer
    x = 117,725,709.28

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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.