Finding the Fourth Proportional to 209,086,612.74, 288,834,582.06 and 167,546,625.30
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Solution
The fourth proportional to 209,086,612.74, 288,834,582.06 and 167,546,625.30 is: 231,450,779.46
Step by Step Solution
- Step 1: Write the proportion equation
209,086,612.74 : 288,834,582.06 = 167,546,625.30 : x - Step 2: Convert to fraction form
209,086,612.74/288,834,582.06 = 167,546,625.30/x - Step 3: Cross multiply
209,086,612.74x = 288,834,582.06 × 167,546,625.30 - Step 4: Simplify right side
209,086,612.74x = 48,393,259,494,088,928 - Step 5: Solve for x
x = 48,393,259,494,088,928/209,086,612.74 - Step 6: Final answer
x = 231,450,779.46
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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.