Finding the Fourth Proportional to 167,981,444.40, 251,972,166.60 and 139,283,630.40
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Solution
The fourth proportional to 167,981,444.40, 251,972,166.60 and 139,283,630.40 is: 208,925,445.60
Step by Step Solution
- Step 1: Write the proportion equation
167,981,444.40 : 251,972,166.60 = 139,283,630.40 : x - Step 2: Convert to fraction form
167,981,444.40/251,972,166.60 = 139,283,630.40/x - Step 3: Cross multiply
167,981,444.40x = 251,972,166.60 × 139,283,630.40 - Step 4: Simplify right side
167,981,444.40x = 35,095,598,123,801,624 - Step 5: Solve for x
x = 35,095,598,123,801,624/167,981,444.40 - Step 6: Final answer
x = 208,925,445.60
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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.