Finding the Fourth Proportional to 12,168,991.68, 16,793,406.56 and 6,662,273.60
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Solution
The fourth proportional to 12,168,991.68, 16,793,406.56 and 6,662,273.60 is: 9,194,045.99
Step by Step Solution
- Step 1: Write the proportion equation
12,168,991.68 : 16,793,406.56 = 6,662,273.60 : x - Step 2: Convert to fraction form
12,168,991.68/16,793,406.56 = 6,662,273.60/x - Step 3: Cross multiply
12,168,991.68x = 16,793,406.56 × 6,662,273.60 - Step 4: Simplify right side
12,168,991.68x = 111,882,269,178,754.80 - Step 5: Solve for x
x = 111,882,269,178,754.80/12,168,991.68 - Step 6: Final answer
x = 9,194,045.99
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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.