Finding the Fourth Proportional to 163,728,608.40, 245,592,912.60 and 81,860,122.35
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Solution
The fourth proportional to 163,728,608.40, 245,592,912.60 and 81,860,122.35 is: 122,790,183.53
Step by Step Solution
- Step 1: Write the proportion equation
163,728,608.40 : 245,592,912.60 = 81,860,122.35 : x - Step 2: Convert to fraction form
163,728,608.40/245,592,912.60 = 81,860,122.35/x - Step 3: Cross multiply
163,728,608.40x = 245,592,912.60 × 81,860,122.35 - Step 4: Simplify right side
163,728,608.40x = 20,104,265,873,728,856 - Step 5: Solve for x
x = 20,104,265,873,728,856/163,728,608.40 - Step 6: Final answer
x = 122,790,183.53
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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.