Finding the Fourth Proportional to 177,169,748.80, 265,754,623.20 and 81,618,260.80
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Solution
The fourth proportional to 177,169,748.80, 265,754,623.20 and 81,618,260.80 is: 122,427,391.20
Step by Step Solution
- Step 1: Write the proportion equation
177,169,748.80 : 265,754,623.20 = 81,618,260.80 : x - Step 2: Convert to fraction form
177,169,748.80/265,754,623.20 = 81,618,260.80/x - Step 3: Cross multiply
177,169,748.80x = 265,754,623.20 × 81,618,260.80 - Step 4: Simplify right side
177,169,748.80x = 21,690,430,145,143,328 - Step 5: Solve for x
x = 21,690,430,145,143,328/177,169,748.80 - Step 6: Final answer
x = 122,427,391.20
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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.