Finding the Fourth Proportional to 13,181,385.92, 18,192,222.29 and 7,380,541.49
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Solution
The fourth proportional to 13,181,385.92, 18,192,222.29 and 7,380,541.49 is: 10,186,216.55
Step by Step Solution
- Step 1: Write the proportion equation
13,181,385.92 : 18,192,222.29 = 7,380,541.49 : x - Step 2: Convert to fraction form
13,181,385.92/18,192,222.29 = 7,380,541.49/x - Step 3: Cross multiply
13,181,385.92x = 18,192,222.29 × 7,380,541.49 - Step 4: Simplify right side
13,181,385.92x = 134,268,451,369,745.11 - Step 5: Solve for x
x = 134,268,451,369,745.11/13,181,385.92 - Step 6: Final answer
x = 10,186,216.55
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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.