Home / 219,770,364.60-329,702,786.10-66,431,921.40

Finding the Fourth Proportional to 219,770,364.60, 329,702,786.10 and 66,431,921.40

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Solution

The fourth proportional to 219,770,364.60, 329,702,786.10 and 66,431,921.40 is: 99,662,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,770,364.60 : 329,702,786.10 = 66,431,921.40 : x
  2. Step 2: Convert to fraction form
    219,770,364.60/329,702,786.10 = 66,431,921.40/x
  3. Step 3: Cross multiply
    219,770,364.60x = 329,702,786.10 × 66,431,921.40
  4. Step 4: Simplify right side
    219,770,364.60x = 21,902,789,571,556,212
  5. Step 5: Solve for x
    x = 21,902,789,571,556,212/219,770,364.60
  6. Step 6: Final answer
    x = 99,662,161.51

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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.