Finding the Fourth Proportional to 8,761,790.88, 13,121,224.56 and 7,236,139.68
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Solution
The fourth proportional to 8,761,790.88, 13,121,224.56 and 7,236,139.68 is: 10,836,484.80
Step by Step Solution
- Step 1: Write the proportion equation
8,761,790.88 : 13,121,224.56 = 7,236,139.68 : x - Step 2: Convert to fraction form
8,761,790.88/13,121,224.56 = 7,236,139.68/x - Step 3: Cross multiply
8,761,790.88x = 13,121,224.56 × 7,236,139.68 - Step 4: Simplify right side
8,761,790.88x = 94,947,013,688,806.55 - Step 5: Solve for x
x = 94,947,013,688,806.55/8,761,790.88 - Step 6: Final answer
x = 10,836,484.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.