Finding the Fourth Proportional to 21,477,470.24, 29,638,912.56 and 11,819,678.24
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Solution
The fourth proportional to 21,477,470.24, 29,638,912.56 and 11,819,678.24 is: 16,311,157.97
Step by Step Solution
- Step 1: Write the proportion equation
21,477,470.24 : 29,638,912.56 = 11,819,678.24 : x - Step 2: Convert to fraction form
21,477,470.24/29,638,912.56 = 11,819,678.24/x - Step 3: Cross multiply
21,477,470.24x = 29,638,912.56 × 11,819,678.24 - Step 4: Simplify right side
21,477,470.24x = 350,322,409,842,694.69 - Step 5: Solve for x
x = 350,322,409,842,694.69/21,477,470.24 - Step 6: Final answer
x = 16,311,157.97
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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.