Home / 408,282,076.80-612,352,256.40-149,364,021.60

Finding the Fourth Proportional to 408,282,076.80, 612,352,256.40 and 149,364,021.60

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Solution

The fourth proportional to 408,282,076.80, 612,352,256.40 and 149,364,021.60 is: 224,020,109.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,282,076.80 : 612,352,256.40 = 149,364,021.60 : x
  2. Step 2: Convert to fraction form
    408,282,076.80/612,352,256.40 = 149,364,021.60/x
  3. Step 3: Cross multiply
    408,282,076.80x = 612,352,256.40 × 149,364,021.60
  4. Step 4: Simplify right side
    408,282,076.80x = 91,463,395,651,738,336
  5. Step 5: Solve for x
    x = 91,463,395,651,738,336/408,282,076.80
  6. Step 6: Final answer
    x = 224,020,109.75

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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.