Finding the Fourth Proportional to 15,764,953.56, 21,755,626.28 and 8,521,609.56
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Solution
The fourth proportional to 15,764,953.56, 21,755,626.28 and 8,521,609.56 is: 11,759,815.99
Step by Step Solution
- Step 1: Write the proportion equation
15,764,953.56 : 21,755,626.28 = 8,521,609.56 : x - Step 2: Convert to fraction form
15,764,953.56/21,755,626.28 = 8,521,609.56/x - Step 3: Cross multiply
15,764,953.56x = 21,755,626.28 × 8,521,609.56 - Step 4: Simplify right side
15,764,953.56x = 185,392,952,891,435.25 - Step 5: Solve for x
x = 185,392,952,891,435.25/15,764,953.56 - Step 6: Final answer
x = 11,759,815.99
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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.