Finding the Fourth Proportional to 20,068,490.36, 27,694,495.18 and 10,901,139.96
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Solution
The fourth proportional to 20,068,490.36, 27,694,495.18 and 10,901,139.96 is: 15,043,561.46
Step by Step Solution
- Step 1: Write the proportion equation
20,068,490.36 : 27,694,495.18 = 10,901,139.96 : x - Step 2: Convert to fraction form
20,068,490.36/27,694,495.18 = 10,901,139.96/x - Step 3: Cross multiply
20,068,490.36x = 27,694,495.18 × 10,901,139.96 - Step 4: Simplify right side
20,068,490.36x = 301,901,568,078,725.44 - Step 5: Solve for x
x = 301,901,568,078,725.44/20,068,490.36 - Step 6: Final answer
x = 15,043,561.46
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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.