Finding the Fourth Proportional to 76,347,129.74, 114,628,311.42 and 54,769,969.04
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Solution
The fourth proportional to 76,347,129.74, 114,628,311.42 and 54,769,969.04 is: 82,232,155.80
Step by Step Solution
- Step 1: Write the proportion equation
76,347,129.74 : 114,628,311.42 = 54,769,969.04 : x - Step 2: Convert to fraction form
76,347,129.74/114,628,311.42 = 54,769,969.04/x - Step 3: Cross multiply
76,347,129.74x = 114,628,311.42 × 54,769,969.04 - Step 4: Simplify right side
76,347,129.74x = 6,278,189,067,307,029 - Step 5: Solve for x
x = 6,278,189,067,307,029/76,347,129.74 - Step 6: Final answer
x = 82,232,155.80
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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.