Finding the Fourth Proportional to 13,146,641.12, 19,720,979.60 and 4,392,949.97
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Solution
The fourth proportional to 13,146,641.12, 19,720,979.60 and 4,392,949.97 is: 6,589,765.09
Step by Step Solution
- Step 1: Write the proportion equation
13,146,641.12 : 19,720,979.60 = 4,392,949.97 : x - Step 2: Convert to fraction form
13,146,641.12/19,720,979.60 = 4,392,949.97/x - Step 3: Cross multiply
13,146,641.12x = 19,720,979.60 × 4,392,949.97 - Step 4: Simplify right side
13,146,641.12x = 86,633,276,769,528.31 - Step 5: Solve for x
x = 86,633,276,769,528.31/13,146,641.12 - Step 6: Final answer
x = 6,589,765.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.