Finding the Fourth Proportional to 13,341,949.94, 18,411,906.66 and 7,230,378.44
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Solution
The fourth proportional to 13,341,949.94, 18,411,906.66 and 7,230,378.44 is: 9,977,930.78
Step by Step Solution
- Step 1: Write the proportion equation
13,341,949.94 : 18,411,906.66 = 7,230,378.44 : x - Step 2: Convert to fraction form
13,341,949.94/18,411,906.66 = 7,230,378.44/x - Step 3: Cross multiply
13,341,949.94x = 18,411,906.66 × 7,230,378.44 - Step 4: Simplify right side
13,341,949.94x = 133,125,052,957,855.44 - Step 5: Solve for x
x = 133,125,052,957,855.44/13,341,949.94 - Step 6: Final answer
x = 9,977,930.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.