Finding the Fourth Proportional to 8,179,971.64, 11,288,439.84 and 4,509,030.04
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Solution
The fourth proportional to 8,179,971.64, 11,288,439.84 and 4,509,030.04 is: 6,222,504.99
Step by Step Solution
- Step 1: Write the proportion equation
8,179,971.64 : 11,288,439.84 = 4,509,030.04 : x - Step 2: Convert to fraction form
8,179,971.64/11,288,439.84 = 4,509,030.04/x - Step 3: Cross multiply
8,179,971.64x = 11,288,439.84 × 4,509,030.04 - Step 4: Simplify right side
8,179,971.64x = 50,899,914,343,292.80 - Step 5: Solve for x
x = 50,899,914,343,292.80/8,179,971.64 - Step 6: Final answer
x = 6,222,504.99
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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.