Finding the Fourth Proportional to 78,896,245.44, 118,399,305.60 and 27,782,381.28
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Solution
The fourth proportional to 78,896,245.44, 118,399,305.60 and 27,782,381.28 is: 41,692,917.49
Step by Step Solution
- Step 1: Write the proportion equation
78,896,245.44 : 118,399,305.60 = 27,782,381.28 : x - Step 2: Convert to fraction form
78,896,245.44/118,399,305.60 = 27,782,381.28/x - Step 3: Cross multiply
78,896,245.44x = 118,399,305.60 × 27,782,381.28 - Step 4: Simplify right side
78,896,245.44x = 3,289,414,651,466,439 - Step 5: Solve for x
x = 3,289,414,651,466,439/78,896,245.44 - Step 6: Final answer
x = 41,692,917.49
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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.