Finding the Fourth Proportional to 3,990,528.36, 5,507,826.12 and 2,613,072.06
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Solution
The fourth proportional to 3,990,528.36, 5,507,826.12 and 2,613,072.06 is: 3,606,626.80
Step by Step Solution
- Step 1: Write the proportion equation
3,990,528.36 : 5,507,826.12 = 2,613,072.06 : x - Step 2: Convert to fraction form
3,990,528.36/5,507,826.12 = 2,613,072.06/x - Step 3: Cross multiply
3,990,528.36x = 5,507,826.12 × 2,613,072.06 - Step 4: Simplify right side
3,990,528.36x = 14,392,346,545,510.21 - Step 5: Solve for x
x = 14,392,346,545,510.21/3,990,528.36 - Step 6: Final answer
x = 3,606,626.80
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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.