Finding the Fourth Proportional to 11,981,988.24, 17,977,471.92 and 6,221,125.68
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Solution
The fourth proportional to 11,981,988.24, 17,977,471.92 and 6,221,125.68 is: 9,334,019.53
Step by Step Solution
- Step 1: Write the proportion equation
11,981,988.24 : 17,977,471.92 = 6,221,125.68 : x - Step 2: Convert to fraction form
11,981,988.24/17,977,471.92 = 6,221,125.68/x - Step 3: Cross multiply
11,981,988.24x = 17,977,471.92 × 6,221,125.68 - Step 4: Simplify right side
11,981,988.24x = 111,840,112,222,990.91 - Step 5: Solve for x
x = 111,840,112,222,990.91/11,981,988.24 - Step 6: Final answer
x = 9,334,019.53
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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.