Finding the Fourth Proportional to 990,582,803.80, 1,485,874,205.70 and 560,601,107.80
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Solution
The fourth proportional to 990,582,803.80, 1,485,874,205.70 and 560,601,107.80 is: 840,901,661.70
Step by Step Solution
- Step 1: Write the proportion equation
990,582,803.80 : 1,485,874,205.70 = 560,601,107.80 : x - Step 2: Convert to fraction form
990,582,803.80/1,485,874,205.70 = 560,601,107.80/x - Step 3: Cross multiply
990,582,803.80x = 1,485,874,205.70 × 560,601,107.80 - Step 4: Simplify right side
990,582,803.80x = 832,982,725,766,865,024 - Step 5: Solve for x
x = 832,982,725,766,865,024/990,582,803.80 - Step 6: Final answer
x = 840,901,661.70
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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.