Finding the Fourth Proportional to 128,204,372.63, 176,922,190.97 and 69,466,990.97
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Solution
The fourth proportional to 128,204,372.63, 176,922,190.97 and 69,466,990.97 is: 95,864,532.46
Step by Step Solution
- Step 1: Write the proportion equation
128,204,372.63 : 176,922,190.97 = 69,466,990.97 : x - Step 2: Convert to fraction form
128,204,372.63/176,922,190.97 = 69,466,990.97/x - Step 3: Cross multiply
128,204,372.63x = 176,922,190.97 × 69,466,990.97 - Step 4: Simplify right side
128,204,372.63x = 12,290,252,241,273,660 - Step 5: Solve for x
x = 12,290,252,241,273,660/128,204,372.63 - Step 6: Final answer
x = 95,864,532.46
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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.