Finding the Fourth Proportional to 738,542,492.70, 1,107,813,739.05 and 356,336,540.70
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Solution
The fourth proportional to 738,542,492.70, 1,107,813,739.05 and 356,336,540.70 is: 534,504,811.05
Step by Step Solution
- Step 1: Write the proportion equation
738,542,492.70 : 1,107,813,739.05 = 356,336,540.70 : x - Step 2: Convert to fraction form
738,542,492.70/1,107,813,739.05 = 356,336,540.70/x - Step 3: Cross multiply
738,542,492.70x = 1,107,813,739.05 × 356,336,540.70 - Step 4: Simplify right side
738,542,492.70x = 394,754,515,513,009,472 - Step 5: Solve for x
x = 394,754,515,513,009,472/738,542,492.70 - Step 6: Final answer
x = 534,504,811.05
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Double scale
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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.