Finding the Fourth Proportional to 99,777,961.40, 149,750,922.90 and 48,703,638.20
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Solution
The fourth proportional to 99,777,961.40, 149,750,922.90 and 48,703,638.20 is: 73,096,450.02
Step by Step Solution
- Step 1: Write the proportion equation
99,777,961.40 : 149,750,922.90 = 48,703,638.20 : x - Step 2: Convert to fraction form
99,777,961.40/149,750,922.90 = 48,703,638.20/x - Step 3: Cross multiply
99,777,961.40x = 149,750,922.90 × 48,703,638.20 - Step 4: Simplify right side
99,777,961.40x = 7,293,414,769,037,696 - Step 5: Solve for x
x = 7,293,414,769,037,696/99,777,961.40 - Step 6: Final answer
x = 73,096,450.02
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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.