Finding the Fourth Proportional to 12,619,694.16, 18,921,959.64 and 4,934,182.68
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Solution
The fourth proportional to 12,619,694.16, 18,921,959.64 and 4,934,182.68 is: 7,398,309.69
Step by Step Solution
- Step 1: Write the proportion equation
12,619,694.16 : 18,921,959.64 = 4,934,182.68 : x - Step 2: Convert to fraction form
12,619,694.16/18,921,959.64 = 4,934,182.68/x - Step 3: Cross multiply
12,619,694.16x = 18,921,959.64 × 4,934,182.68 - Step 4: Simplify right side
12,619,694.16x = 93,364,405,527,347.03 - Step 5: Solve for x
x = 93,364,405,527,347.03/12,619,694.16 - Step 6: Final answer
x = 7,398,309.69
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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.