Finding the Fourth Proportional to 15,233,358.42, 21,022,033.68 and 8,707,128.48
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Solution
The fourth proportional to 15,233,358.42, 21,022,033.68 and 8,707,128.48 is: 12,015,836.77
Step by Step Solution
- Step 1: Write the proportion equation
15,233,358.42 : 21,022,033.68 = 8,707,128.48 : x - Step 2: Convert to fraction form
15,233,358.42/21,022,033.68 = 8,707,128.48/x - Step 3: Cross multiply
15,233,358.42x = 21,022,033.68 × 8,707,128.48 - Step 4: Simplify right side
15,233,358.42x = 183,041,548,162,647.22 - Step 5: Solve for x
x = 183,041,548,162,647.22/15,233,358.42 - Step 6: Final answer
x = 12,015,836.77
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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.