Finding the Fourth Proportional to 111,906,138.20, 167,859,207.30 and 66,444,531.80
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Solution
The fourth proportional to 111,906,138.20, 167,859,207.30 and 66,444,531.80 is: 99,666,797.70
Step by Step Solution
- Step 1: Write the proportion equation
111,906,138.20 : 167,859,207.30 = 66,444,531.80 : x - Step 2: Convert to fraction form
111,906,138.20/167,859,207.30 = 66,444,531.80/x - Step 3: Cross multiply
111,906,138.20x = 167,859,207.30 × 66,444,531.80 - Step 4: Simplify right side
111,906,138.20x = 11,153,326,437,367,642 - Step 5: Solve for x
x = 11,153,326,437,367,642/111,906,138.20 - Step 6: Final answer
x = 99,666,797.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.