Finding the Fourth Proportional to 696,863,497.53, 961,691,450.69 and 379,344,220.56
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Solution
The fourth proportional to 696,863,497.53, 961,691,450.69 and 379,344,220.56 is: 523,505,815.81
Step by Step Solution
- Step 1: Write the proportion equation
696,863,497.53 : 961,691,450.69 = 379,344,220.56 : x - Step 2: Convert to fraction form
696,863,497.53/961,691,450.69 = 379,344,220.56/x - Step 3: Cross multiply
696,863,497.53x = 961,691,450.69 × 379,344,220.56 - Step 4: Simplify right side
696,863,497.53x = 364,812,093,781,213,760 - Step 5: Solve for x
x = 364,812,093,781,213,760/696,863,497.53 - Step 6: Final answer
x = 523,505,815.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.