Finding the Fourth Proportional to 11,821,447.81, 16,313,391.52 and 6,664,812.85
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Solution
The fourth proportional to 11,821,447.81, 16,313,391.52 and 6,664,812.85 is: 9,197,325.33
Step by Step Solution
- Step 1: Write the proportion equation
11,821,447.81 : 16,313,391.52 = 6,664,812.85 : x - Step 2: Convert to fraction form
11,821,447.81/16,313,391.52 = 6,664,812.85/x - Step 3: Cross multiply
11,821,447.81x = 16,313,391.52 × 6,664,812.85 - Step 4: Simplify right side
11,821,447.81x = 108,725,701,429,577.02 - Step 5: Solve for x
x = 108,725,701,429,577.02/11,821,447.81 - Step 6: Final answer
x = 9,197,325.33
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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.