Finding the Fourth Proportional to 20,512,201.70, 30,768,302.55 and 9,895,369.70
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Solution
The fourth proportional to 20,512,201.70, 30,768,302.55 and 9,895,369.70 is: 14,843,054.55
Step by Step Solution
- Step 1: Write the proportion equation
20,512,201.70 : 30,768,302.55 = 9,895,369.70 : x - Step 2: Convert to fraction form
20,512,201.70/30,768,302.55 = 9,895,369.70/x - Step 3: Cross multiply
20,512,201.70x = 30,768,302.55 × 9,895,369.70 - Step 4: Simplify right side
20,512,201.70x = 304,463,728,773,702.75 - Step 5: Solve for x
x = 304,463,728,773,702.75/20,512,201.70 - Step 6: Final answer
x = 14,843,054.55
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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.