Finding the Fourth Proportional to 665,280,604.70, 997,920,907.05 and 276,974,380.70
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Solution
The fourth proportional to 665,280,604.70, 997,920,907.05 and 276,974,380.70 is: 415,461,571.05
Step by Step Solution
- Step 1: Write the proportion equation
665,280,604.70 : 997,920,907.05 = 276,974,380.70 : x - Step 2: Convert to fraction form
665,280,604.70/997,920,907.05 = 276,974,380.70/x - Step 3: Cross multiply
665,280,604.70x = 997,920,907.05 × 276,974,380.70 - Step 4: Simplify right side
665,280,604.70x = 276,398,525,217,756,000 - Step 5: Solve for x
x = 276,398,525,217,756,000/665,280,604.70 - Step 6: Final answer
x = 415,461,571.05
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1.5x scale
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.