Finding the Fourth Proportional to 177,159,748.80, 265,739,623.20 and 81,608,260.80
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Solution
The fourth proportional to 177,159,748.80, 265,739,623.20 and 81,608,260.80 is: 122,412,391.20
Step by Step Solution
- Step 1: Write the proportion equation
177,159,748.80 : 265,739,623.20 = 81,608,260.80 : x - Step 2: Convert to fraction form
177,159,748.80/265,739,623.20 = 81,608,260.80/x - Step 3: Cross multiply
177,159,748.80x = 265,739,623.20 × 81,608,260.80 - Step 4: Simplify right side
177,159,748.80x = 21,686,548,474,999,328 - Step 5: Solve for x
x = 21,686,548,474,999,328/177,159,748.80 - Step 6: Final answer
x = 122,412,391.20
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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.