Finding the Fourth Proportional to 5,091,857.36, 7,026,943.56 and 2,800,192.40
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Solution
The fourth proportional to 5,091,857.36, 7,026,943.56 and 2,800,192.40 is: 3,864,364.72
Step by Step Solution
- Step 1: Write the proportion equation
5,091,857.36 : 7,026,943.56 = 2,800,192.40 : x - Step 2: Convert to fraction form
5,091,857.36/7,026,943.56 = 2,800,192.40/x - Step 3: Cross multiply
5,091,857.36x = 7,026,943.56 × 2,800,192.40 - Step 4: Simplify right side
5,091,857.36x = 19,676,793,951,940.94 - Step 5: Solve for x
x = 19,676,793,951,940.94/5,091,857.36 - Step 6: Final answer
x = 3,864,364.72
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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.