Finding the Fourth Proportional to 163,577,969.19, 225,733,964.27 and 90,239,091.75
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Solution
The fourth proportional to 163,577,969.19, 225,733,964.27 and 90,239,091.75 is: 124,527,942.32
Step by Step Solution
- Step 1: Write the proportion equation
163,577,969.19 : 225,733,964.27 = 90,239,091.75 : x - Step 2: Convert to fraction form
163,577,969.19/225,733,964.27 = 90,239,091.75/x - Step 3: Cross multiply
163,577,969.19x = 225,733,964.27 × 90,239,091.75 - Step 4: Simplify right side
163,577,969.19x = 20,370,027,912,400,556 - Step 5: Solve for x
x = 20,370,027,912,400,556/163,577,969.19 - Step 6: Final answer
x = 124,527,942.32
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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.