Finding the Fourth Proportional to 8,147,536.80, 12,221,305.20 and 3,668,560.80
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Solution
The fourth proportional to 8,147,536.80, 12,221,305.20 and 3,668,560.80 is: 5,502,841.20
Step by Step Solution
- Step 1: Write the proportion equation
8,147,536.80 : 12,221,305.20 = 3,668,560.80 : x - Step 2: Convert to fraction form
8,147,536.80/12,221,305.20 = 3,668,560.80/x - Step 3: Cross multiply
8,147,536.80x = 12,221,305.20 × 3,668,560.80 - Step 4: Simplify right side
8,147,536.80x = 44,834,601,181,556.16 - Step 5: Solve for x
x = 44,834,601,181,556.16/8,147,536.80 - Step 6: Final answer
x = 5,502,841.20
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.