Finding the Fourth Proportional to 118,732,166.20, 177,720,335.70 and 84,719,942.20
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Solution
The fourth proportional to 118,732,166.20, 177,720,335.70 and 84,719,942.20 is: 126,810,257.49
Step by Step Solution
- Step 1: Write the proportion equation
118,732,166.20 : 177,720,335.70 = 84,719,942.20 : x - Step 2: Convert to fraction form
118,732,166.20/177,720,335.70 = 84,719,942.20/x - Step 3: Cross multiply
118,732,166.20x = 177,720,335.70 × 84,719,942.20 - Step 4: Simplify right side
118,732,166.20x = 15,056,456,568,268,596 - Step 5: Solve for x
x = 15,056,456,568,268,596/118,732,166.20 - Step 6: Final answer
x = 126,810,257.49
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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.