Finding the Fourth Proportional to 3,855,129.96, 5,320,110.60 and 2,136,279.18
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Solution
The fourth proportional to 3,855,129.96, 5,320,110.60 and 2,136,279.18 is: 2,948,082.59
Step by Step Solution
- Step 1: Write the proportion equation
3,855,129.96 : 5,320,110.60 = 2,136,279.18 : x - Step 2: Convert to fraction form
3,855,129.96/5,320,110.60 = 2,136,279.18/x - Step 3: Cross multiply
3,855,129.96x = 5,320,110.60 × 2,136,279.18 - Step 4: Simplify right side
3,855,129.96x = 11,365,241,510,077.31 - Step 5: Solve for x
x = 11,365,241,510,077.31/3,855,129.96 - Step 6: Final answer
x = 2,948,082.59
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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.