Finding the Fourth Proportional to 91,517,335.36, 137,770,769.41 and 83,372,324.08
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Solution
The fourth proportional to 91,517,335.36, 137,770,769.41 and 83,372,324.08 is: 125,509,218.45
Step by Step Solution
- Step 1: Write the proportion equation
91,517,335.36 : 137,770,769.41 = 83,372,324.08 : x - Step 2: Convert to fraction form
91,517,335.36/137,770,769.41 = 83,372,324.08/x - Step 3: Cross multiply
91,517,335.36x = 137,770,769.41 × 83,372,324.08 - Step 4: Simplify right side
91,517,335.36x = 11,486,269,236,001,470 - Step 5: Solve for x
x = 11,486,269,236,001,470/91,517,335.36 - Step 6: Final answer
x = 125,509,218.45
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.