Finding the Fourth Proportional to 11,585,535.92, 15,988,786.91 and 6,428,897.46
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Solution
The fourth proportional to 11,585,535.92, 15,988,786.91 and 6,428,897.46 is: 8,872,293.20
Step by Step Solution
- Step 1: Write the proportion equation
11,585,535.92 : 15,988,786.91 = 6,428,897.46 : x - Step 2: Convert to fraction form
11,585,535.92/15,988,786.91 = 6,428,897.46/x - Step 3: Cross multiply
11,585,535.92x = 15,988,786.91 × 6,428,897.46 - Step 4: Simplify right side
11,585,535.92x = 102,790,271,522,035.75 - Step 5: Solve for x
x = 102,790,271,522,035.75/11,585,535.92 - Step 6: Final answer
x = 8,872,293.20
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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.