Finding the Fourth Proportional to 181,738,129.80, 272,681,844.30 and 66,777,745.80
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Solution
The fourth proportional to 181,738,129.80, 272,681,844.30 and 66,777,745.80 is: 100,194,047.90
Step by Step Solution
- Step 1: Write the proportion equation
181,738,129.80 : 272,681,844.30 = 66,777,745.80 : x - Step 2: Convert to fraction form
181,738,129.80/272,681,844.30 = 66,777,745.80/x - Step 3: Cross multiply
181,738,129.80x = 272,681,844.30 × 66,777,745.80 - Step 4: Simplify right side
181,738,129.80x = 18,209,078,882,940,580 - Step 5: Solve for x
x = 18,209,078,882,940,580/181,738,129.80 - Step 6: Final answer
x = 100,194,047.90
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1.5x scale
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.