Finding the Fourth Proportional to 21,407,741.07, 29,542,697.85 and 11,618,182.92
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Solution
The fourth proportional to 21,407,741.07, 29,542,697.85 and 11,618,182.92 is: 16,033,100.66
Step by Step Solution
- Step 1: Write the proportion equation
21,407,741.07 : 29,542,697.85 = 11,618,182.92 : x - Step 2: Convert to fraction form
21,407,741.07/29,542,697.85 = 11,618,182.92/x - Step 3: Cross multiply
21,407,741.07x = 29,542,697.85 × 11,618,182.92 - Step 4: Simplify right side
21,407,741.07x = 343,232,467,571,590.75 - Step 5: Solve for x
x = 343,232,467,571,590.75/21,407,741.07 - Step 6: Final answer
x = 16,033,100.66
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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.