Finding the Fourth Proportional to 27,887,788.24, 38,486,082.34 and 15,498,403.84
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Solution
The fourth proportional to 27,887,788.24, 38,486,082.34 and 15,498,403.84 is: 21,388,316.68
Step by Step Solution
- Step 1: Write the proportion equation
27,887,788.24 : 38,486,082.34 = 15,498,403.84 : x - Step 2: Convert to fraction form
27,887,788.24/38,486,082.34 = 15,498,403.84/x - Step 3: Cross multiply
27,887,788.24x = 38,486,082.34 × 15,498,403.84 - Step 4: Simplify right side
27,887,788.24x = 596,472,846,324,812.25 - Step 5: Solve for x
x = 596,472,846,324,812.25/27,887,788.24 - Step 6: Final answer
x = 21,388,316.68
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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.