Finding the Fourth Proportional to 21,987,681.30, 32,981,775.84 and 6,635,103.93
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Solution
The fourth proportional to 21,987,681.30, 32,981,775.84 and 6,635,103.93 is: 9,952,732.51
Step by Step Solution
- Step 1: Write the proportion equation
21,987,681.30 : 32,981,775.84 = 6,635,103.93 : x - Step 2: Convert to fraction form
21,987,681.30/32,981,775.84 = 6,635,103.93/x - Step 3: Cross multiply
21,987,681.30x = 32,981,775.84 × 6,635,103.93 - Step 4: Simplify right side
21,987,681.30x = 218,837,510,494,363.03 - Step 5: Solve for x
x = 218,837,510,494,363.03/21,987,681.30 - Step 6: Final answer
x = 9,952,732.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.