Finding the Fourth Proportional to 124,416,114.40, 186,624,171.60 and 85,616,984.80
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Solution
The fourth proportional to 124,416,114.40, 186,624,171.60 and 85,616,984.80 is: 128,425,477.20
Step by Step Solution
- Step 1: Write the proportion equation
124,416,114.40 : 186,624,171.60 = 85,616,984.80 : x - Step 2: Convert to fraction form
124,416,114.40/186,624,171.60 = 85,616,984.80/x - Step 3: Cross multiply
124,416,114.40x = 186,624,171.60 × 85,616,984.80 - Step 4: Simplify right side
124,416,114.40x = 15,978,198,863,189,790 - Step 5: Solve for x
x = 15,978,198,863,189,790/124,416,114.40 - Step 6: Final answer
x = 128,425,477.20
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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.