Finding the Fourth Proportional to 5,198,842.78, 7,173,850.86 and 2,875,366.08
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Solution
The fourth proportional to 5,198,842.78, 7,173,850.86 and 2,875,366.08 is: 3,967,699.80
Step by Step Solution
- Step 1: Write the proportion equation
5,198,842.78 : 7,173,850.86 = 2,875,366.08 : x - Step 2: Convert to fraction form
5,198,842.78/7,173,850.86 = 2,875,366.08/x - Step 3: Cross multiply
5,198,842.78x = 7,173,850.86 × 2,875,366.08 - Step 4: Simplify right side
5,198,842.78x = 20,627,447,425,822.83 - Step 5: Solve for x
x = 20,627,447,425,822.83/5,198,842.78 - Step 6: Final answer
x = 3,967,699.80
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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.