Finding the Fourth Proportional to 151,121,245.20, 226,681,867.80 and 120,888,157.20
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Solution
The fourth proportional to 151,121,245.20, 226,681,867.80 and 120,888,157.20 is: 181,332,235.80
Step by Step Solution
- Step 1: Write the proportion equation
151,121,245.20 : 226,681,867.80 = 120,888,157.20 : x - Step 2: Convert to fraction form
151,121,245.20/226,681,867.80 = 120,888,157.20/x - Step 3: Cross multiply
151,121,245.20x = 226,681,867.80 × 120,888,157.20 - Step 4: Simplify right side
151,121,245.20x = 27,403,153,268,996,020 - Step 5: Solve for x
x = 27,403,153,268,996,020/151,121,245.20 - Step 6: Final answer
x = 181,332,235.80
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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.