Finding the Fourth Proportional to 18,111,750.20, 27,167,625.30 and 16,320,159.80
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Solution
The fourth proportional to 18,111,750.20, 27,167,625.30 and 16,320,159.80 is: 24,480,239.70
Step by Step Solution
- Step 1: Write the proportion equation
18,111,750.20 : 27,167,625.30 = 16,320,159.80 : x - Step 2: Convert to fraction form
18,111,750.20/27,167,625.30 = 16,320,159.80/x - Step 3: Cross multiply
18,111,750.20x = 27,167,625.30 × 16,320,159.80 - Step 4: Simplify right side
18,111,750.20x = 443,379,986,282,523 - Step 5: Solve for x
x = 443,379,986,282,523/18,111,750.20 - Step 6: Final answer
x = 24,480,239.70
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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.