Finding the Fourth Proportional to 121,620,206.25, 167,852,583.08 and 74,568,957.03
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Solution
The fourth proportional to 121,620,206.25, 167,852,583.08 and 74,568,957.03 is: 102,915,399.02
Step by Step Solution
- Step 1: Write the proportion equation
121,620,206.25 : 167,852,583.08 = 74,568,957.03 : x - Step 2: Convert to fraction form
121,620,206.25/167,852,583.08 = 74,568,957.03/x - Step 3: Cross multiply
121,620,206.25x = 167,852,583.08 × 74,568,957.03 - Step 4: Simplify right side
121,620,206.25x = 12,516,592,054,694,180 - Step 5: Solve for x
x = 12,516,592,054,694,180/121,620,206.25 - Step 6: Final answer
x = 102,915,399.02
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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.