Finding the Fourth Proportional to 84,643,722.40, 126,965,583.60 and 27,177,235.60
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Solution
The fourth proportional to 84,643,722.40, 126,965,583.60 and 27,177,235.60 is: 40,765,853.40
Step by Step Solution
- Step 1: Write the proportion equation
84,643,722.40 : 126,965,583.60 = 27,177,235.60 : x - Step 2: Convert to fraction form
84,643,722.40/126,965,583.60 = 27,177,235.60/x - Step 3: Cross multiply
84,643,722.40x = 126,965,583.60 × 27,177,235.60 - Step 4: Simplify right side
84,643,722.40x = 3,450,573,578,588,696 - Step 5: Solve for x
x = 3,450,573,578,588,696/84,643,722.40 - Step 6: Final answer
x = 40,765,853.40
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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.