Finding the Fourth Proportional to 5,132,686.08, 7,082,995.20 and 2,840,709.12
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Solution
The fourth proportional to 5,132,686.08, 7,082,995.20 and 2,840,709.12 is: 3,920,116.83
Step by Step Solution
- Step 1: Write the proportion equation
5,132,686.08 : 7,082,995.20 = 2,840,709.12 : x - Step 2: Convert to fraction form
5,132,686.08/7,082,995.20 = 2,840,709.12/x - Step 3: Cross multiply
5,132,686.08x = 7,082,995.20 × 2,840,709.12 - Step 4: Simplify right side
5,132,686.08x = 20,120,729,061,556.23 - Step 5: Solve for x
x = 20,120,729,061,556.23/5,132,686.08 - Step 6: Final answer
x = 3,920,116.83
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1.5x scale
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.