Finding the Fourth Proportional to 57,639,545.87, 79,544,458.94 and 31,533,458.09
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Solution
The fourth proportional to 57,639,545.87, 79,544,458.94 and 31,533,458.09 is: 43,517,203.75
Step by Step Solution
- Step 1: Write the proportion equation
57,639,545.87 : 79,544,458.94 = 31,533,458.09 : x - Step 2: Convert to fraction form
57,639,545.87/79,544,458.94 = 31,533,458.09/x - Step 3: Cross multiply
57,639,545.87x = 79,544,458.94 × 31,533,458.09 - Step 4: Simplify right side
57,639,545.87x = 2,508,311,861,720,826.50 - Step 5: Solve for x
x = 2,508,311,861,720,826.50/57,639,545.87 - Step 6: Final answer
x = 43,517,203.75
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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.