Finding the Fourth Proportional to 18,191,729.70, 27,287,594.55 and 8,625,791.70
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Solution
The fourth proportional to 18,191,729.70, 27,287,594.55 and 8,625,791.70 is: 12,938,687.55
Step by Step Solution
- Step 1: Write the proportion equation
18,191,729.70 : 27,287,594.55 = 8,625,791.70 : x - Step 2: Convert to fraction form
18,191,729.70/27,287,594.55 = 8,625,791.70/x - Step 3: Cross multiply
18,191,729.70x = 27,287,594.55 × 8,625,791.70 - Step 4: Simplify right side
18,191,729.70x = 235,377,106,582,355.22 - Step 5: Solve for x
x = 235,377,106,582,355.22/18,191,729.70 - Step 6: Final answer
x = 12,938,687.55
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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.