Finding the Fourth Proportional to 580,492,919.70, 814,985,912.70 and 580,492,919.70
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Solution
The fourth proportional to 580,492,919.70, 814,985,912.70 and 580,492,919.70 is: 814,985,912.70
Step by Step Solution
- Step 1: Write the proportion equation
580,492,919.70 : 814,985,912.70 = 580,492,919.70 : x - Step 2: Convert to fraction form
580,492,919.70/814,985,912.70 = 580,492,919.70/x - Step 3: Cross multiply
580,492,919.70x = 814,985,912.70 × 580,492,919.70 - Step 4: Simplify right side
580,492,919.70x = 473,093,551,977,592,384 - Step 5: Solve for x
x = 473,093,551,977,592,384/580,492,919.70 - Step 6: Final answer
x = 814,985,912.70
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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.