Finding the Fourth Proportional to 109,512,287.70, 164,268,431.55 and 91,596,383.70
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Solution
The fourth proportional to 109,512,287.70, 164,268,431.55 and 91,596,383.70 is: 137,394,575.55
Step by Step Solution
- Step 1: Write the proportion equation
109,512,287.70 : 164,268,431.55 = 91,596,383.70 : x - Step 2: Convert to fraction form
109,512,287.70/164,268,431.55 = 91,596,383.70/x - Step 3: Cross multiply
109,512,287.70x = 164,268,431.55 × 91,596,383.70 - Step 4: Simplify right side
109,512,287.70x = 15,046,394,286,050,988 - Step 5: Solve for x
x = 15,046,394,286,050,988/109,512,287.70 - Step 6: Final answer
x = 137,394,575.55
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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.