Finding the Fourth Proportional to 12,268,807.20, 18,403,210.80 and 5,550,343.20
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Solution
The fourth proportional to 12,268,807.20, 18,403,210.80 and 5,550,343.20 is: 8,325,514.80
Step by Step Solution
- Step 1: Write the proportion equation
12,268,807.20 : 18,403,210.80 = 5,550,343.20 : x - Step 2: Convert to fraction form
12,268,807.20/18,403,210.80 = 5,550,343.20/x - Step 3: Cross multiply
12,268,807.20x = 18,403,210.80 × 5,550,343.20 - Step 4: Simplify right side
12,268,807.20x = 102,144,135,921,946.56 - Step 5: Solve for x
x = 102,144,135,921,946.56/12,268,807.20 - Step 6: Final answer
x = 8,325,514.80
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Similar ratio
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1.5x scale
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.