Finding the Fourth Proportional to 18,275,873.20, 27,413,809.80 and 15,406,091.80
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Solution
The fourth proportional to 18,275,873.20, 27,413,809.80 and 15,406,091.80 is: 23,109,137.70
Step by Step Solution
- Step 1: Write the proportion equation
18,275,873.20 : 27,413,809.80 = 15,406,091.80 : x - Step 2: Convert to fraction form
18,275,873.20/27,413,809.80 = 15,406,091.80/x - Step 3: Cross multiply
18,275,873.20x = 27,413,809.80 × 15,406,091.80 - Step 4: Simplify right side
18,275,873.20x = 422,339,670,366,539.69 - Step 5: Solve for x
x = 422,339,670,366,539.69/18,275,873.20 - Step 6: Final answer
x = 23,109,137.70
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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.