Finding the Fourth Proportional to 5,286,647,350.48, 7,930,874,460.84 and 2,179,531,485.76
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Solution
The fourth proportional to 5,286,647,350.48, 7,930,874,460.84 and 2,179,531,485.76 is: 3,269,669,688.76
Step by Step Solution
- Step 1: Write the proportion equation
5,286,647,350.48 : 7,930,874,460.84 = 2,179,531,485.76 : x - Step 2: Convert to fraction form
5,286,647,350.48/7,930,874,460.84 = 2,179,531,485.76/x - Step 3: Cross multiply
5,286,647,350.48x = 7,930,874,460.84 × 2,179,531,485.76 - Step 4: Simplify right side
5,286,647,350.48x = 17,285,590,597,010,647,040 - Step 5: Solve for x
x = 17,285,590,597,010,647,040/5,286,647,350.48 - Step 6: Final answer
x = 3,269,669,688.76
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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.