Finding the Fourth Proportional to 292,328,173.12, 403,380,331.68 and 161,915,321.92
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Solution
The fourth proportional to 292,328,173.12, 403,380,331.68 and 161,915,321.92 is: 223,425,116.93
Step by Step Solution
- Step 1: Write the proportion equation
292,328,173.12 : 403,380,331.68 = 161,915,321.92 : x - Step 2: Convert to fraction form
292,328,173.12/403,380,331.68 = 161,915,321.92/x - Step 3: Cross multiply
292,328,173.12x = 403,380,331.68 × 161,915,321.92 - Step 4: Simplify right side
292,328,173.12x = 65,313,456,260,163,568 - Step 5: Solve for x
x = 65,313,456,260,163,568/292,328,173.12 - Step 6: Final answer
x = 223,425,116.93
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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.