Finding the Fourth Proportional to 5,565,198.80, 7,678,231.08 and 3,117,479.24
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Solution
The fourth proportional to 5,565,198.80, 7,678,231.08 and 3,117,479.24 is: 4,301,144.82
Step by Step Solution
- Step 1: Write the proportion equation
5,565,198.80 : 7,678,231.08 = 3,117,479.24 : x - Step 2: Convert to fraction form
5,565,198.80/7,678,231.08 = 3,117,479.24/x - Step 3: Cross multiply
5,565,198.80x = 7,678,231.08 × 3,117,479.24 - Step 4: Simplify right side
5,565,198.80x = 23,936,725,991,822.78 - Step 5: Solve for x
x = 23,936,725,991,822.78/5,565,198.80 - Step 6: Final answer
x = 4,301,144.82
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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.