Finding the Fourth Proportional to 4,002,097.21, 5,522,887.80 and 2,166,554.99
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Solution
The fourth proportional to 4,002,097.21, 5,522,887.80 and 2,166,554.99 is: 2,989,842.45
Step by Step Solution
- Step 1: Write the proportion equation
4,002,097.21 : 5,522,887.80 = 2,166,554.99 : x - Step 2: Convert to fraction form
4,002,097.21/5,522,887.80 = 2,166,554.99/x - Step 3: Cross multiply
4,002,097.21x = 5,522,887.80 × 2,166,554.99 - Step 4: Simplify right side
4,002,097.21x = 11,965,640,136,107.34 - Step 5: Solve for x
x = 11,965,640,136,107.34/4,002,097.21 - Step 6: Final answer
x = 2,989,842.45
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1.5x scale
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.