Home / 129,308,640.80-193,962,961.20-106,350,389.60

Finding the Fourth Proportional to 129,308,640.80, 193,962,961.20 and 106,350,389.60

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Solution

The fourth proportional to 129,308,640.80, 193,962,961.20 and 106,350,389.60 is: 159,525,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,308,640.80 : 193,962,961.20 = 106,350,389.60 : x
  2. Step 2: Convert to fraction form
    129,308,640.80/193,962,961.20 = 106,350,389.60/x
  3. Step 3: Cross multiply
    129,308,640.80x = 193,962,961.20 × 106,350,389.60
  4. Step 4: Simplify right side
    129,308,640.80x = 20,628,036,491,589,680
  5. Step 5: Solve for x
    x = 20,628,036,491,589,680/129,308,640.80
  6. Step 6: Final answer
    x = 159,525,584.40

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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.