Finding the Fourth Proportional to 99,207,144.85, 136,906,391.81 and 54,555,995.62
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Solution
The fourth proportional to 99,207,144.85, 136,906,391.81 and 54,555,995.62 is: 75,287,566.47
Step by Step Solution
- Step 1: Write the proportion equation
99,207,144.85 : 136,906,391.81 = 54,555,995.62 : x - Step 2: Convert to fraction form
99,207,144.85/136,906,391.81 = 54,555,995.62/x - Step 3: Cross multiply
99,207,144.85x = 136,906,391.81 × 54,555,995.62 - Step 4: Simplify right side
99,207,144.85x = 7,469,064,511,936,364 - Step 5: Solve for x
x = 7,469,064,511,936,364/99,207,144.85 - Step 6: Final answer
x = 75,287,566.47
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1.5x scale
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.