Finding the Fourth Proportional to 74,595,837.97, 102,196,662.56 and 71,800,006.21
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Solution
The fourth proportional to 74,595,837.97, 102,196,662.56 and 71,800,006.21 is: 98,366,359.39
Step by Step Solution
- Step 1: Write the proportion equation
74,595,837.97 : 102,196,662.56 = 71,800,006.21 : x - Step 2: Convert to fraction form
74,595,837.97/102,196,662.56 = 71,800,006.21/x - Step 3: Cross multiply
74,595,837.97x = 102,196,662.56 × 71,800,006.21 - Step 4: Simplify right side
74,595,837.97x = 7,337,721,006,449,274 - Step 5: Solve for x
x = 7,337,721,006,449,274/74,595,837.97 - Step 6: Final answer
x = 98,366,359.39
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.