Finding the Fourth Proportional to 5,127,621.57, 7,075,331.55 and 2,951,744.18
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Solution
The fourth proportional to 5,127,621.57, 7,075,331.55 and 2,951,744.18 is: 4,072,954.37
Step by Step Solution
- Step 1: Write the proportion equation
5,127,621.57 : 7,075,331.55 = 2,951,744.18 : x - Step 2: Convert to fraction form
5,127,621.57/7,075,331.55 = 2,951,744.18/x - Step 3: Cross multiply
5,127,621.57x = 7,075,331.55 × 2,951,744.18 - Step 4: Simplify right side
5,127,621.57x = 20,884,568,688,906.22 - Step 5: Solve for x
x = 20,884,568,688,906.22/5,127,621.57 - Step 6: Final answer
x = 4,072,954.37
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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.