Finding the Fourth Proportional to 161,323,477.20, 241,985,215.80 and 132,979,957.20
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Solution
The fourth proportional to 161,323,477.20, 241,985,215.80 and 132,979,957.20 is: 199,469,935.80
Step by Step Solution
- Step 1: Write the proportion equation
161,323,477.20 : 241,985,215.80 = 132,979,957.20 : x - Step 2: Convert to fraction form
161,323,477.20/241,985,215.80 = 132,979,957.20/x - Step 3: Cross multiply
161,323,477.20x = 241,985,215.80 × 132,979,957.20 - Step 4: Simplify right side
161,323,477.20x = 32,179,183,640,116,768 - Step 5: Solve for x
x = 32,179,183,640,116,768/161,323,477.20 - Step 6: Final answer
x = 199,469,935.80
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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.