Finding the Fourth Proportional to 298,415,912.20, 447,623,868.30 and 177,184,961.80
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Solution
The fourth proportional to 298,415,912.20, 447,623,868.30 and 177,184,961.80 is: 265,777,442.70
Step by Step Solution
- Step 1: Write the proportion equation
298,415,912.20 : 447,623,868.30 = 177,184,961.80 : x - Step 2: Convert to fraction form
298,415,912.20/447,623,868.30 = 177,184,961.80/x - Step 3: Cross multiply
298,415,912.20x = 447,623,868.30 × 177,184,961.80 - Step 4: Simplify right side
298,415,912.20x = 79,312,218,005,503,744 - Step 5: Solve for x
x = 79,312,218,005,503,744/298,415,912.20 - Step 6: Final answer
x = 265,777,442.70
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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.