Home / 326,601,963.60-489,902,945.40-145,203,435.60

Finding the Fourth Proportional to 326,601,963.60, 489,902,945.40 and 145,203,435.60

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Solution

The fourth proportional to 326,601,963.60, 489,902,945.40 and 145,203,435.60 is: 217,805,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,601,963.60 : 489,902,945.40 = 145,203,435.60 : x
  2. Step 2: Convert to fraction form
    326,601,963.60/489,902,945.40 = 145,203,435.60/x
  3. Step 3: Cross multiply
    326,601,963.60x = 489,902,945.40 × 145,203,435.60
  4. Step 4: Simplify right side
    326,601,963.60x = 71,135,590,782,639,208
  5. Step 5: Solve for x
    x = 71,135,590,782,639,208/326,601,963.60
  6. Step 6: Final answer
    x = 217,805,153.40

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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.