Finding the Fourth Proportional to 168,492,088,472.40, 252,738,132,708.60 and 56,659,895,960.40
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Solution
The fourth proportional to 168,492,088,472.40, 252,738,132,708.60 and 56,659,895,960.40 is: 84,989,843,940.60
Step by Step Solution
- Step 1: Write the proportion equation
168,492,088,472.40 : 252,738,132,708.60 = 56,659,895,960.40 : x - Step 2: Convert to fraction form
168,492,088,472.40/252,738,132,708.60 = 56,659,895,960.40/x - Step 3: Cross multiply
168,492,088,472.40x = 252,738,132,708.60 × 56,659,895,960.40 - Step 4: Simplify right side
168,492,088,472.40x = 14,320,116,304,495,043,936,256 - Step 5: Solve for x
x = 14,320,116,304,495,043,936,256/168,492,088,472.40 - Step 6: Final answer
x = 84,989,843,940.60
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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.