Finding the Fourth Proportional to 161,323,409.70, 241,985,114.55 and 132,979,889.70
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Solution
The fourth proportional to 161,323,409.70, 241,985,114.55 and 132,979,889.70 is: 199,469,834.55
Step by Step Solution
- Step 1: Write the proportion equation
161,323,409.70 : 241,985,114.55 = 132,979,889.70 : x - Step 2: Convert to fraction form
161,323,409.70/241,985,114.55 = 132,979,889.70/x - Step 3: Cross multiply
161,323,409.70x = 241,985,114.55 × 132,979,889.70 - Step 4: Simplify right side
161,323,409.70x = 32,179,153,841,900,868 - Step 5: Solve for x
x = 32,179,153,841,900,868/161,323,409.70 - Step 6: Final answer
x = 199,469,834.55
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Double scale
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1.5x scale
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.