Finding the Fourth Proportional to 134,128,214.40, 201,192,321.60 and 126,192,028.80
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Solution
The fourth proportional to 134,128,214.40, 201,192,321.60 and 126,192,028.80 is: 189,288,043.20
Step by Step Solution
- Step 1: Write the proportion equation
134,128,214.40 : 201,192,321.60 = 126,192,028.80 : x - Step 2: Convert to fraction form
134,128,214.40/201,192,321.60 = 126,192,028.80/x - Step 3: Cross multiply
134,128,214.40x = 201,192,321.60 × 126,192,028.80 - Step 4: Simplify right side
134,128,214.40x = 25,388,867,241,686,060 - Step 5: Solve for x
x = 25,388,867,241,686,060/134,128,214.40 - Step 6: Final answer
x = 189,288,043.20
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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.