Finding the Fourth Proportional to 11,299,489.20, 16,949,233.80 and 4,119,130.80
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Solution
The fourth proportional to 11,299,489.20, 16,949,233.80 and 4,119,130.80 is: 6,178,696.20
Step by Step Solution
- Step 1: Write the proportion equation
11,299,489.20 : 16,949,233.80 = 4,119,130.80 : x - Step 2: Convert to fraction form
11,299,489.20/16,949,233.80 = 4,119,130.80/x - Step 3: Cross multiply
11,299,489.20x = 16,949,233.80 × 4,119,130.80 - Step 4: Simplify right side
11,299,489.20x = 69,816,110,981,981.04 - Step 5: Solve for x
x = 69,816,110,981,981.04/11,299,489.20 - Step 6: Final answer
x = 6,178,696.20
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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.