Finding the Fourth Proportional to 15,322,849.74, 21,145,676.92 and 8,447,577.84
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Solution
The fourth proportional to 15,322,849.74, 21,145,676.92 and 8,447,577.84 is: 11,657,736.96
Step by Step Solution
- Step 1: Write the proportion equation
15,322,849.74 : 21,145,676.92 = 8,447,577.84 : x - Step 2: Convert to fraction form
15,322,849.74/21,145,676.92 = 8,447,577.84/x - Step 3: Cross multiply
15,322,849.74x = 21,145,676.92 × 8,447,577.84 - Step 4: Simplify right side
15,322,849.74x = 178,629,751,718,886.75 - Step 5: Solve for x
x = 178,629,751,718,886.75/15,322,849.74 - Step 6: Final answer
x = 11,657,736.96
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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.