Finding the Fourth Proportional to 18,202,286.70, 27,268,000.65 and 10,992,403.80
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Solution
The fourth proportional to 18,202,286.70, 27,268,000.65 and 10,992,403.80 is: 16,467,209.80
Step by Step Solution
- Step 1: Write the proportion equation
18,202,286.70 : 27,268,000.65 = 10,992,403.80 : x - Step 2: Convert to fraction form
18,202,286.70/27,268,000.65 = 10,992,403.80/x - Step 3: Cross multiply
18,202,286.70x = 27,268,000.65 × 10,992,403.80 - Step 4: Simplify right side
18,202,286.70x = 299,740,873,963,462.50 - Step 5: Solve for x
x = 299,740,873,963,462.50/18,202,286.70 - Step 6: Final answer
x = 16,467,209.80
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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.