Finding the Fourth Proportional to 5,071,744.48, 6,999,724.96 and 3,138,627.68
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Solution
The fourth proportional to 5,071,744.48, 6,999,724.96 and 3,138,627.68 is: 4,331,750.27
Step by Step Solution
- Step 1: Write the proportion equation
5,071,744.48 : 6,999,724.96 = 3,138,627.68 : x - Step 2: Convert to fraction form
5,071,744.48/6,999,724.96 = 3,138,627.68/x - Step 3: Cross multiply
5,071,744.48x = 6,999,724.96 × 3,138,627.68 - Step 4: Simplify right side
5,071,744.48x = 21,969,530,511,842.89 - Step 5: Solve for x
x = 21,969,530,511,842.89/5,071,744.48 - Step 6: Final answer
x = 4,331,750.27
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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.