Finding the Fourth Proportional to 18,362,238.40, 27,511,864.80 and 8,756,934.40
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Solution
The fourth proportional to 18,362,238.40, 27,511,864.80 and 8,756,934.40 is: 13,120,382.71
Step by Step Solution
- Step 1: Write the proportion equation
18,362,238.40 : 27,511,864.80 = 8,756,934.40 : x - Step 2: Convert to fraction form
18,362,238.40/27,511,864.80 = 8,756,934.40/x - Step 3: Cross multiply
18,362,238.40x = 27,511,864.80 × 8,756,934.40 - Step 4: Simplify right side
18,362,238.40x = 240,919,595,275,269.12 - Step 5: Solve for x
x = 240,919,595,275,269.12/18,362,238.40 - Step 6: Final answer
x = 13,120,382.71
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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.