Finding the Fourth Proportional to 8,206,789.48, 12,310,167.68 and 7,707,380.28
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Solution
The fourth proportional to 8,206,789.48, 12,310,167.68 and 7,707,380.28 is: 11,561,054.89
Step by Step Solution
- Step 1: Write the proportion equation
8,206,789.48 : 12,310,167.68 = 7,707,380.28 : x - Step 2: Convert to fraction form
8,206,789.48/12,310,167.68 = 7,707,380.28/x - Step 3: Cross multiply
8,206,789.48x = 12,310,167.68 × 7,707,380.28 - Step 4: Simplify right side
8,206,789.48x = 94,879,143,620,325.34 - Step 5: Solve for x
x = 94,879,143,620,325.34/8,206,789.48 - Step 6: Final answer
x = 11,561,054.89
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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.