Finding the Fourth Proportional to 21,550,198.64, 29,739,904.04 and 11,761,271.09
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Solution
The fourth proportional to 21,550,198.64, 29,739,904.04 and 11,761,271.09 is: 16,230,897.88
Step by Step Solution
- Step 1: Write the proportion equation
21,550,198.64 : 29,739,904.04 = 11,761,271.09 : x - Step 2: Convert to fraction form
21,550,198.64/29,739,904.04 = 11,761,271.09/x - Step 3: Cross multiply
21,550,198.64x = 29,739,904.04 × 11,761,271.09 - Step 4: Simplify right side
21,550,198.64x = 349,779,073,397,520.38 - Step 5: Solve for x
x = 349,779,073,397,520.38/21,550,198.64 - Step 6: Final answer
x = 16,230,897.88
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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.