Finding the Fourth Proportional to 7,726,306,750.40, 11,590,310,431.20 and 2,820,043,438.40
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Solution
The fourth proportional to 7,726,306,750.40, 11,590,310,431.20 and 2,820,043,438.40 is: 4,230,375,512.70
Step by Step Solution
- Step 1: Write the proportion equation
7,726,306,750.40 : 11,590,310,431.20 = 2,820,043,438.40 : x - Step 2: Convert to fraction form
7,726,306,750.40/11,590,310,431.20 = 2,820,043,438.40/x - Step 3: Cross multiply
7,726,306,750.40x = 11,590,310,431.20 × 2,820,043,438.40 - Step 4: Simplify right side
7,726,306,750.40x = 32,685,178,880,524,636,160 - Step 5: Solve for x
x = 32,685,178,880,524,636,160/7,726,306,750.40 - Step 6: Final answer
x = 4,230,375,512.70
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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.