Finding the Fourth Proportional to 12,486,534,770.43, 18,722,322,425.84 and 3,974,240,689.70
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Solution
The fourth proportional to 12,486,534,770.43, 18,722,322,425.84 and 3,974,240,689.70 is: 5,958,980,370.32
Step by Step Solution
- Step 1: Write the proportion equation
12,486,534,770.43 : 18,722,322,425.84 = 3,974,240,689.70 : x - Step 2: Convert to fraction form
12,486,534,770.43/18,722,322,425.84 = 3,974,240,689.70/x - Step 3: Cross multiply
12,486,534,770.43x = 18,722,322,425.84 × 3,974,240,689.70 - Step 4: Simplify right side
12,486,534,770.43x = 74,407,015,590,342,656,000 - Step 5: Solve for x
x = 74,407,015,590,342,656,000/12,486,534,770.43 - Step 6: Final answer
x = 5,958,980,370.32
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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.