Finding the Fourth Proportional to 212,584,821.84, 318,877,236.87 and 51,026,757.84
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Solution
The fourth proportional to 212,584,821.84, 318,877,236.87 and 51,026,757.84 is: 76,540,137.75
Step by Step Solution
- Step 1: Write the proportion equation
212,584,821.84 : 318,877,236.87 = 51,026,757.84 : x - Step 2: Convert to fraction form
212,584,821.84/318,877,236.87 = 51,026,757.84/x - Step 3: Cross multiply
212,584,821.84x = 318,877,236.87 × 51,026,757.84 - Step 4: Simplify right side
212,584,821.84x = 16,271,271,546,453,810 - Step 5: Solve for x
x = 16,271,271,546,453,810/212,584,821.84 - Step 6: Final answer
x = 76,540,137.75
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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.