Finding the Fourth Proportional to 21,634,243.41, 32,455,695.64 and 7,987,473.03
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Solution
The fourth proportional to 21,634,243.41, 32,455,695.64 and 7,987,473.03 is: 11,982,808.39
Step by Step Solution
- Step 1: Write the proportion equation
21,634,243.41 : 32,455,695.64 = 7,987,473.03 : x - Step 2: Convert to fraction form
21,634,243.41/32,455,695.64 = 7,987,473.03/x - Step 3: Cross multiply
21,634,243.41x = 32,455,695.64 × 7,987,473.03 - Step 4: Simplify right side
21,634,243.41x = 259,238,993,412,141.44 - Step 5: Solve for x
x = 259,238,993,412,141.44/21,634,243.41 - Step 6: Final answer
x = 11,982,808.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.