Finding the Fourth Proportional to 15,529,959.36, 21,431,364.48 and 8,654,290.56
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Solution
The fourth proportional to 15,529,959.36, 21,431,364.48 and 8,654,290.56 is: 11,942,932.43
Step by Step Solution
- Step 1: Write the proportion equation
15,529,959.36 : 21,431,364.48 = 8,654,290.56 : x - Step 2: Convert to fraction form
15,529,959.36/21,431,364.48 = 8,654,290.56/x - Step 3: Cross multiply
15,529,959.36x = 21,431,364.48 × 8,654,290.56 - Step 4: Simplify right side
15,529,959.36x = 185,473,255,307,183.31 - Step 5: Solve for x
x = 185,473,255,307,183.31/15,529,959.36 - Step 6: Final answer
x = 11,942,932.43
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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.