Finding the Fourth Proportional to 28,508,082.96, 39,345,414.12 and 22,442,157.84
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Solution
The fourth proportional to 28,508,082.96, 39,345,414.12 and 22,442,157.84 is: 30,973,531.09
Step by Step Solution
- Step 1: Write the proportion equation
28,508,082.96 : 39,345,414.12 = 22,442,157.84 : x - Step 2: Convert to fraction form
28,508,082.96/39,345,414.12 = 22,442,157.84/x - Step 3: Cross multiply
28,508,082.96x = 39,345,414.12 × 22,442,157.84 - Step 4: Simplify right side
28,508,082.96x = 882,995,993,961,204.62 - Step 5: Solve for x
x = 882,995,993,961,204.62/28,508,082.96 - Step 6: Final answer
x = 30,973,531.09
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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.