Finding the Fourth Proportional to 1,107,813,793.05, 1,661,720,689.58 and 534,504,865.05
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Solution
The fourth proportional to 1,107,813,793.05, 1,661,720,689.58 and 534,504,865.05 is: 801,757,297.58
Step by Step Solution
- Step 1: Write the proportion equation
1,107,813,793.05 : 1,661,720,689.58 = 534,504,865.05 : x - Step 2: Convert to fraction form
1,107,813,793.05/1,661,720,689.58 = 534,504,865.05/x - Step 3: Cross multiply
1,107,813,793.05x = 1,661,720,689.58 × 534,504,865.05 - Step 4: Simplify right side
1,107,813,793.05x = 888,197,792,932,078,336 - Step 5: Solve for x
x = 888,197,792,932,078,336/1,107,813,793.05 - Step 6: Final answer
x = 801,757,297.58
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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.