Finding the Fourth Proportional to 71,138,428.52, 98,133,163.77 and 43,269,662.48
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Solution
The fourth proportional to 71,138,428.52, 98,133,163.77 and 43,269,662.48 is: 59,689,101.41
Step by Step Solution
- Step 1: Write the proportion equation
71,138,428.52 : 98,133,163.77 = 43,269,662.48 : x - Step 2: Convert to fraction form
71,138,428.52/98,133,163.77 = 43,269,662.48/x - Step 3: Cross multiply
71,138,428.52x = 98,133,163.77 × 43,269,662.48 - Step 4: Simplify right side
71,138,428.52x = 4,246,188,874,094,060 - Step 5: Solve for x
x = 4,246,188,874,094,060/71,138,428.52 - Step 6: Final answer
x = 59,689,101.41
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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.