Finding the Fourth Proportional to 353,737,556.80, 531,153,765.60 and 192,494,420.80
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Solution
The fourth proportional to 353,737,556.80, 531,153,765.60 and 192,494,420.80 is: 289,039,528.03
Step by Step Solution
- Step 1: Write the proportion equation
353,737,556.80 : 531,153,765.60 = 192,494,420.80 : x - Step 2: Convert to fraction form
353,737,556.80/531,153,765.60 = 192,494,420.80/x - Step 3: Cross multiply
353,737,556.80x = 531,153,765.60 × 192,494,420.80 - Step 4: Simplify right side
353,737,556.80x = 102,244,136,464,910,976 - Step 5: Solve for x
x = 102,244,136,464,910,976/353,737,556.80 - Step 6: Final answer
x = 289,039,528.03
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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.