Finding the Fourth Proportional to 2,122,716.42, 3,179,223.94 and 1,666,268.68
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Solution
The fourth proportional to 2,122,716.42, 3,179,223.94 and 1,666,268.68 is: 2,495,595.37
Step by Step Solution
- Step 1: Write the proportion equation
2,122,716.42 : 3,179,223.94 = 1,666,268.68 : x - Step 2: Convert to fraction form
2,122,716.42/3,179,223.94 = 1,666,268.68/x - Step 3: Cross multiply
2,122,716.42x = 3,179,223.94 × 1,666,268.68 - Step 4: Simplify right side
2,122,716.42x = 5,297,441,277,928.20 - Step 5: Solve for x
x = 5,297,441,277,928.20/2,122,716.42 - Step 6: Final answer
x = 2,495,595.37
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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.