Finding the Fourth Proportional to 112,268,791.80, 168,403,187.70 and 82,035,703.80
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Solution
The fourth proportional to 112,268,791.80, 168,403,187.70 and 82,035,703.80 is: 123,053,555.70
Step by Step Solution
- Step 1: Write the proportion equation
112,268,791.80 : 168,403,187.70 = 82,035,703.80 : x - Step 2: Convert to fraction form
112,268,791.80/168,403,187.70 = 82,035,703.80/x - Step 3: Cross multiply
112,268,791.80x = 168,403,187.70 × 82,035,703.80 - Step 4: Simplify right side
112,268,791.80x = 13,815,074,025,133,002 - Step 5: Solve for x
x = 13,815,074,025,133,002/112,268,791.80 - Step 6: Final answer
x = 123,053,555.70
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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.