Finding the Fourth Proportional to 4,971,770.78, 6,860,975.96 and 2,796,313.07
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Solution
The fourth proportional to 4,971,770.78, 6,860,975.96 and 2,796,313.07 is: 3,858,873.94
Step by Step Solution
- Step 1: Write the proportion equation
4,971,770.78 : 6,860,975.96 = 2,796,313.07 : x - Step 2: Convert to fraction form
4,971,770.78/6,860,975.96 = 2,796,313.07/x - Step 3: Cross multiply
4,971,770.78x = 6,860,975.96 × 2,796,313.07 - Step 4: Simplify right side
4,971,770.78x = 19,185,436,701,617.35 - Step 5: Solve for x
x = 19,185,436,701,617.35/4,971,770.78 - Step 6: Final answer
x = 3,858,873.94
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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.