Finding the Fourth Proportional to 3,723,445.68, 5,138,375.64 and 2,091,921.84
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Solution
The fourth proportional to 3,723,445.68, 5,138,375.64 and 2,091,921.84 is: 2,886,863.71
Step by Step Solution
- Step 1: Write the proportion equation
3,723,445.68 : 5,138,375.64 = 2,091,921.84 : x - Step 2: Convert to fraction form
3,723,445.68/5,138,375.64 = 2,091,921.84/x - Step 3: Cross multiply
3,723,445.68x = 5,138,375.64 × 2,091,921.84 - Step 4: Simplify right side
3,723,445.68x = 10,749,080,223,439.98 - Step 5: Solve for x
x = 10,749,080,223,439.98/3,723,445.68 - Step 6: Final answer
x = 2,886,863.71
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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.