Finding the Fourth Proportional to 28,689,639.36, 39,591,716.80 and 16,299,754.08
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Solution
The fourth proportional to 28,689,639.36, 39,591,716.80 and 16,299,754.08 is: 22,493,668.86
Step by Step Solution
- Step 1: Write the proportion equation
28,689,639.36 : 39,591,716.80 = 16,299,754.08 : x - Step 2: Convert to fraction form
28,689,639.36/39,591,716.80 = 16,299,754.08/x - Step 3: Cross multiply
28,689,639.36x = 39,591,716.80 × 16,299,754.08 - Step 4: Simplify right side
28,689,639.36x = 645,335,247,445,004.50 - Step 5: Solve for x
x = 645,335,247,445,004.50/28,689,639.36 - Step 6: Final answer
x = 22,493,668.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.