Finding the Fourth Proportional to 6,992,181.36, 9,649,390.68 and 3,936,504.96
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Solution
The fourth proportional to 6,992,181.36, 9,649,390.68 and 3,936,504.96 is: 5,432,478.41
Step by Step Solution
- Step 1: Write the proportion equation
6,992,181.36 : 9,649,390.68 = 3,936,504.96 : x - Step 2: Convert to fraction form
6,992,181.36/9,649,390.68 = 3,936,504.96/x - Step 3: Cross multiply
6,992,181.36x = 9,649,390.68 × 3,936,504.96 - Step 4: Simplify right side
6,992,181.36x = 37,984,874,272,797.77 - Step 5: Solve for x
x = 37,984,874,272,797.77/6,992,181.36 - Step 6: Final answer
x = 5,432,478.41
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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.