Finding the Fourth Proportional to 18,348,743.40, 27,523,115.10 and 12,302,125.80
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Solution
The fourth proportional to 18,348,743.40, 27,523,115.10 and 12,302,125.80 is: 18,453,188.70
Step by Step Solution
- Step 1: Write the proportion equation
18,348,743.40 : 27,523,115.10 = 12,302,125.80 : x - Step 2: Convert to fraction form
18,348,743.40/27,523,115.10 = 12,302,125.80/x - Step 3: Cross multiply
18,348,743.40x = 27,523,115.10 × 12,302,125.80 - Step 4: Simplify right side
18,348,743.40x = 338,592,824,368,079.62 - Step 5: Solve for x
x = 338,592,824,368,079.62/18,348,743.40 - Step 6: Final answer
x = 18,453,188.70
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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.