Finding the Fourth Proportional to 8,135,717.84, 11,278,727.90 and 7,704,305.36
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Solution
The fourth proportional to 8,135,717.84, 11,278,727.90 and 7,704,305.36 is: 10,680,651.11
Step by Step Solution
- Step 1: Write the proportion equation
8,135,717.84 : 11,278,727.90 = 7,704,305.36 : x - Step 2: Convert to fraction form
8,135,717.84/11,278,727.90 = 7,704,305.36/x - Step 3: Cross multiply
8,135,717.84x = 11,278,727.90 × 7,704,305.36 - Step 4: Simplify right side
8,135,717.84x = 86,894,763,813,951.55 - Step 5: Solve for x
x = 86,894,763,813,951.55/8,135,717.84 - Step 6: Final answer
x = 10,680,651.11
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.