Finding the Fourth Proportional to 168,440,131.80, 252,660,197.70 and 102,966,600.60
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Solution
The fourth proportional to 168,440,131.80, 252,660,197.70 and 102,966,600.60 is: 154,449,900.90
Step by Step Solution
- Step 1: Write the proportion equation
168,440,131.80 : 252,660,197.70 = 102,966,600.60 : x - Step 2: Convert to fraction form
168,440,131.80/252,660,197.70 = 102,966,600.60/x - Step 3: Cross multiply
168,440,131.80x = 252,660,197.70 × 102,966,600.60 - Step 4: Simplify right side
168,440,131.80x = 26,015,561,664,092,936 - Step 5: Solve for x
x = 26,015,561,664,092,936/168,440,131.80 - Step 6: Final answer
x = 154,449,900.90
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1.5x scale
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.