Finding the Fourth Proportional to 212,310,529.30, 318,465,793.95 and 68,703,361.30
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Solution
The fourth proportional to 212,310,529.30, 318,465,793.95 and 68,703,361.30 is: 103,055,041.95
Step by Step Solution
- Step 1: Write the proportion equation
212,310,529.30 : 318,465,793.95 = 68,703,361.30 : x - Step 2: Convert to fraction form
212,310,529.30/318,465,793.95 = 68,703,361.30/x - Step 3: Cross multiply
212,310,529.30x = 318,465,793.95 × 68,703,361.30 - Step 4: Simplify right side
212,310,529.30x = 21,879,670,503,438,204 - Step 5: Solve for x
x = 21,879,670,503,438,204/212,310,529.30 - Step 6: Final answer
x = 103,055,041.95
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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.