Finding the Fourth Proportional to 121,190,716.34, 167,243,375.67 and 68,979,751.46
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Solution
The fourth proportional to 121,190,716.34, 167,243,375.67 and 68,979,751.46 is: 95,192,163.52
Step by Step Solution
- Step 1: Write the proportion equation
121,190,716.34 : 167,243,375.67 = 68,979,751.46 : x - Step 2: Convert to fraction form
121,190,716.34/167,243,375.67 = 68,979,751.46/x - Step 3: Cross multiply
121,190,716.34x = 167,243,375.67 × 68,979,751.46 - Step 4: Simplify right side
121,190,716.34x = 11,536,406,487,048,008 - Step 5: Solve for x
x = 11,536,406,487,048,008/121,190,716.34 - Step 6: Final answer
x = 95,192,163.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.