Finding the Fourth Proportional to 215,832,137.80, 323,748,206.70 and 193,157,321.80
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Solution
The fourth proportional to 215,832,137.80, 323,748,206.70 and 193,157,321.80 is: 289,735,982.70
Step by Step Solution
- Step 1: Write the proportion equation
215,832,137.80 : 323,748,206.70 = 193,157,321.80 : x - Step 2: Convert to fraction form
215,832,137.80/323,748,206.70 = 193,157,321.80/x - Step 3: Cross multiply
215,832,137.80x = 323,748,206.70 × 193,157,321.80 - Step 4: Simplify right side
215,832,137.80x = 62,534,336,543,724,816 - Step 5: Solve for x
x = 62,534,336,543,724,816/215,832,137.80 - Step 6: Final answer
x = 289,735,982.70
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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.