Finding the Fourth Proportional to 8,338,013.32, 11,513,639.49 and 5,245,690.99
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Solution
The fourth proportional to 8,338,013.32, 11,513,639.49 and 5,245,690.99 is: 7,243,571.41
Step by Step Solution
- Step 1: Write the proportion equation
8,338,013.32 : 11,513,639.49 = 5,245,690.99 : x - Step 2: Convert to fraction form
8,338,013.32/11,513,639.49 = 5,245,690.99/x - Step 3: Cross multiply
8,338,013.32x = 11,513,639.49 × 5,245,690.99 - Step 4: Simplify right side
8,338,013.32x = 60,396,994,934,801.20 - Step 5: Solve for x
x = 60,396,994,934,801.20/8,338,013.32 - Step 6: Final answer
x = 7,243,571.41
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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.