Finding the Fourth Proportional to 18,911,463.36, 26,093,950.56 and 11,172,626.88
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Solution
The fourth proportional to 18,911,463.36, 26,093,950.56 and 11,172,626.88 is: 15,415,939.42
Step by Step Solution
- Step 1: Write the proportion equation
18,911,463.36 : 26,093,950.56 = 11,172,626.88 : x - Step 2: Convert to fraction form
18,911,463.36/26,093,950.56 = 11,172,626.88/x - Step 3: Cross multiply
18,911,463.36x = 26,093,950.56 × 11,172,626.88 - Step 4: Simplify right side
18,911,463.36x = 291,537,973,432,047.06 - Step 5: Solve for x
x = 291,537,973,432,047.06/18,911,463.36 - Step 6: Final answer
x = 15,415,939.42
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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.