Finding the Fourth Proportional to 20,415,115.80, 30,587,244.30 and 17,226,469.80
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Solution
The fourth proportional to 20,415,115.80, 30,587,244.30 and 17,226,469.80 is: 25,809,809.03
Step by Step Solution
- Step 1: Write the proportion equation
20,415,115.80 : 30,587,244.30 = 17,226,469.80 : x - Step 2: Convert to fraction form
20,415,115.80/30,587,244.30 = 17,226,469.80/x - Step 3: Cross multiply
20,415,115.80x = 30,587,244.30 × 17,226,469.80 - Step 4: Simplify right side
20,415,115.80x = 526,910,240,199,172.19 - Step 5: Solve for x
x = 526,910,240,199,172.19/20,415,115.80 - Step 6: Final answer
x = 25,809,809.03
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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.