Finding the Fourth Proportional to 12,192,818.44, 16,826,574.60 and 6,686,390.78
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Solution
The fourth proportional to 12,192,818.44, 16,826,574.60 and 6,686,390.78 is: 9,227,485.33
Step by Step Solution
- Step 1: Write the proportion equation
12,192,818.44 : 16,826,574.60 = 6,686,390.78 : x - Step 2: Convert to fraction form
12,192,818.44/16,826,574.60 = 6,686,390.78/x - Step 3: Cross multiply
12,192,818.44x = 16,826,574.60 × 6,686,390.78 - Step 4: Simplify right side
12,192,818.44x = 112,509,053,264,422.20 - Step 5: Solve for x
x = 112,509,053,264,422.20/12,192,818.44 - Step 6: Final answer
x = 9,227,485.33
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1.5x scale
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.