Finding the Fourth Proportional to 2,135,613.12, 2,947,106.70 and 1,168,723.92
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Solution
The fourth proportional to 2,135,613.12, 2,947,106.70 and 1,168,723.92 is: 1,612,817.44
Step by Step Solution
- Step 1: Write the proportion equation
2,135,613.12 : 2,947,106.70 = 1,168,723.92 : x - Step 2: Convert to fraction form
2,135,613.12/2,947,106.70 = 1,168,723.92/x - Step 3: Cross multiply
2,135,613.12x = 2,947,106.70 × 1,168,723.92 - Step 4: Simplify right side
2,135,613.12x = 3,444,354,095,082.26 - Step 5: Solve for x
x = 3,444,354,095,082.26/2,135,613.12 - Step 6: Final answer
x = 1,612,817.44
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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.