Finding the Fourth Proportional to 21,582,480.70, 32,373,721.05 and 19,818,883.90
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Solution
The fourth proportional to 21,582,480.70, 32,373,721.05 and 19,818,883.90 is: 29,728,325.85
Step by Step Solution
- Step 1: Write the proportion equation
21,582,480.70 : 32,373,721.05 = 19,818,883.90 : x - Step 2: Convert to fraction form
21,582,480.70/32,373,721.05 = 19,818,883.90/x - Step 3: Cross multiply
21,582,480.70x = 32,373,721.05 × 19,818,883.90 - Step 4: Simplify right side
21,582,480.70x = 641,611,018,900,936 - Step 5: Solve for x
x = 641,611,018,900,936/21,582,480.70 - Step 6: Final answer
x = 29,728,325.85
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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.