Finding the Fourth Proportional to 28,548,146.70, 39,395,382.39 and 15,495,124.68
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Solution
The fourth proportional to 28,548,146.70, 39,395,382.39 and 15,495,124.68 is: 21,382,696.69
Step by Step Solution
- Step 1: Write the proportion equation
28,548,146.70 : 39,395,382.39 = 15,495,124.68 : x - Step 2: Convert to fraction form
28,548,146.70/39,395,382.39 = 15,495,124.68/x - Step 3: Cross multiply
28,548,146.70x = 39,395,382.39 × 15,495,124.68 - Step 4: Simplify right side
28,548,146.70x = 610,436,361,949,326.38 - Step 5: Solve for x
x = 610,436,361,949,326.38/28,548,146.70 - Step 6: Final answer
x = 21,382,696.69
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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.