Finding the Fourth Proportional to 177,156,138.20, 265,734,207.30 and 161,000,331.80
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Solution
The fourth proportional to 177,156,138.20, 265,734,207.30 and 161,000,331.80 is: 241,500,497.70
Step by Step Solution
- Step 1: Write the proportion equation
177,156,138.20 : 265,734,207.30 = 161,000,331.80 : x - Step 2: Convert to fraction form
177,156,138.20/265,734,207.30 = 161,000,331.80/x - Step 3: Cross multiply
177,156,138.20x = 265,734,207.30 × 161,000,331.80 - Step 4: Simplify right side
177,156,138.20x = 42,783,295,545,909,984 - Step 5: Solve for x
x = 42,783,295,545,909,984/177,156,138.20 - Step 6: Final answer
x = 241,500,497.70
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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.