Home / 219,903,009.90-329,770,534.05-66,498,081.90

Finding the Fourth Proportional to 219,903,009.90, 329,770,534.05 and 66,498,081.90

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Solution

The fourth proportional to 219,903,009.90, 329,770,534.05 and 66,498,081.90 is: 99,721,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,903,009.90 : 329,770,534.05 = 66,498,081.90 : x
  2. Step 2: Convert to fraction form
    219,903,009.90/329,770,534.05 = 66,498,081.90/x
  3. Step 3: Cross multiply
    219,903,009.90x = 329,770,534.05 × 66,498,081.90
  4. Step 4: Simplify right side
    219,903,009.90x = 21,929,107,981,463,640
  5. Step 5: Solve for x
    x = 21,929,107,981,463,640/219,903,009.90
  6. Step 6: Final answer
    x = 99,721,727.28

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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.