Finding the Fourth Proportional to 198,711,884.30, 274,222,412.97 and 110,603,985.26
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Solution
The fourth proportional to 198,711,884.30, 274,222,412.97 and 110,603,985.26 is: 152,633,506.69
Step by Step Solution
- Step 1: Write the proportion equation
198,711,884.30 : 274,222,412.97 = 110,603,985.26 : x - Step 2: Convert to fraction form
198,711,884.30/274,222,412.97 = 110,603,985.26/x - Step 3: Cross multiply
198,711,884.30x = 274,222,412.97 × 110,603,985.26 - Step 4: Simplify right side
198,711,884.30x = 30,330,091,722,095,516 - Step 5: Solve for x
x = 30,330,091,722,095,516/198,711,884.30 - Step 6: Final answer
x = 152,633,506.69
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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.