Finding the Fourth Proportional to 111,668,195.70, 167,502,293.55 and 85,840,163.10
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Solution
The fourth proportional to 111,668,195.70, 167,502,293.55 and 85,840,163.10 is: 128,760,244.65
Step by Step Solution
- Step 1: Write the proportion equation
111,668,195.70 : 167,502,293.55 = 85,840,163.10 : x - Step 2: Convert to fraction form
111,668,195.70/167,502,293.55 = 85,840,163.10/x - Step 3: Cross multiply
111,668,195.70x = 167,502,293.55 × 85,840,163.10 - Step 4: Simplify right side
111,668,195.70x = 14,378,424,197,956,078 - Step 5: Solve for x
x = 14,378,424,197,956,078/111,668,195.70 - Step 6: Final answer
x = 128,760,244.65
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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.