Finding the Fourth Proportional to 4,178,278.09, 6,259,346.99 and 3,082,131.82
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Solution
The fourth proportional to 4,178,278.09, 6,259,346.99 and 3,082,131.82 is: 4,617,244.74
Step by Step Solution
- Step 1: Write the proportion equation
4,178,278.09 : 6,259,346.99 = 3,082,131.82 : x - Step 2: Convert to fraction form
4,178,278.09/6,259,346.99 = 3,082,131.82/x - Step 3: Cross multiply
4,178,278.09x = 6,259,346.99 × 3,082,131.82 - Step 4: Simplify right side
4,178,278.09x = 19,292,132,499,003.49 - Step 5: Solve for x
x = 19,292,132,499,003.49/4,178,278.09 - Step 6: Final answer
x = 4,617,244.74
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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.