Finding the Fourth Proportional to 8,179,871.84, 11,284,074.71 and 6,242,769.39
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Solution
The fourth proportional to 8,179,871.84, 11,284,074.71 and 6,242,769.39 is: 8,611,855.73
Step by Step Solution
- Step 1: Write the proportion equation
8,179,871.84 : 11,284,074.71 = 6,242,769.39 : x - Step 2: Convert to fraction form
8,179,871.84/11,284,074.71 = 6,242,769.39/x - Step 3: Cross multiply
8,179,871.84x = 11,284,074.71 × 6,242,769.39 - Step 4: Simplify right side
8,179,871.84x = 70,443,876,162,847.28 - Step 5: Solve for x
x = 70,443,876,162,847.28/8,179,871.84 - Step 6: Final answer
x = 8,611,855.73
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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.