Finding the Fourth Proportional to 126,134,122.60, 189,201,183.90 and 123,583,205.80
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Solution
The fourth proportional to 126,134,122.60, 189,201,183.90 and 123,583,205.80 is: 185,374,808.70
Step by Step Solution
- Step 1: Write the proportion equation
126,134,122.60 : 189,201,183.90 = 123,583,205.80 : x - Step 2: Convert to fraction form
126,134,122.60/189,201,183.90 = 123,583,205.80/x - Step 3: Cross multiply
126,134,122.60x = 189,201,183.90 × 123,583,205.80 - Step 4: Simplify right side
126,134,122.60x = 23,382,088,847,517,348 - Step 5: Solve for x
x = 23,382,088,847,517,348/126,134,122.60 - Step 6: Final answer
x = 185,374,808.70
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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.