Finding the Fourth Proportional to 10,790,805.20, 16,183,615.80 and 6,231,995.60
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Solution
The fourth proportional to 10,790,805.20, 16,183,615.80 and 6,231,995.60 is: 9,346,496.45
Step by Step Solution
- Step 1: Write the proportion equation
10,790,805.20 : 16,183,615.80 = 6,231,995.60 : x - Step 2: Convert to fraction form
10,790,805.20/16,183,615.80 = 6,231,995.60/x - Step 3: Cross multiply
10,790,805.20x = 16,183,615.80 × 6,231,995.60 - Step 4: Simplify right side
10,790,805.20x = 100,856,222,457,690.48 - Step 5: Solve for x
x = 100,856,222,457,690.48/10,790,805.20 - Step 6: Final answer
x = 9,346,496.45
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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.