Finding the Fourth Proportional to 764,317,686.40, 1,146,476,529.60 and 457,451,843.20
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Solution
The fourth proportional to 764,317,686.40, 1,146,476,529.60 and 457,451,843.20 is: 686,177,764.80
Step by Step Solution
- Step 1: Write the proportion equation
764,317,686.40 : 1,146,476,529.60 = 457,451,843.20 : x - Step 2: Convert to fraction form
764,317,686.40/1,146,476,529.60 = 457,451,843.20/x - Step 3: Cross multiply
764,317,686.40x = 1,146,476,529.60 × 457,451,843.20 - Step 4: Simplify right side
764,317,686.40x = 524,457,801,651,059,328 - Step 5: Solve for x
x = 524,457,801,651,059,328/764,317,686.40 - Step 6: Final answer
x = 686,177,764.80
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Similar ratio
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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.