Finding the Fourth Proportional to 126,197,107.80, 189,295,661.70 and 126,197,107.80
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Solution
The fourth proportional to 126,197,107.80, 189,295,661.70 and 126,197,107.80 is: 189,295,661.70
Step by Step Solution
- Step 1: Write the proportion equation
126,197,107.80 : 189,295,661.70 = 126,197,107.80 : x - Step 2: Convert to fraction form
126,197,107.80/189,295,661.70 = 126,197,107.80/x - Step 3: Cross multiply
126,197,107.80x = 189,295,661.70 × 126,197,107.80 - Step 4: Simplify right side
126,197,107.80x = 23,888,565,025,627,228 - Step 5: Solve for x
x = 23,888,565,025,627,228/126,197,107.80 - Step 6: Final answer
x = 189,295,661.70
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1.5x scale
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.