Finding the Fourth Proportional to 279,936,638.70, 419,149,130.84 and 279,936,638.70
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Solution
The fourth proportional to 279,936,638.70, 419,149,130.84 and 279,936,638.70 is: 419,149,130.84
Step by Step Solution
- Step 1: Write the proportion equation
279,936,638.70 : 419,149,130.84 = 279,936,638.70 : x - Step 2: Convert to fraction form
279,936,638.70/419,149,130.84 = 279,936,638.70/x - Step 3: Cross multiply
279,936,638.70x = 419,149,130.84 × 279,936,638.70 - Step 4: Simplify right side
279,936,638.70x = 117,335,198,801,376,096 - Step 5: Solve for x
x = 117,335,198,801,376,096/279,936,638.70 - Step 6: Final answer
x = 419,149,130.84
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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.