Finding the Fourth Proportional to 667,040,245.49, 920,515,626.03 and 369,701,683.95
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Solution
The fourth proportional to 667,040,245.49, 920,515,626.03 and 369,701,683.95 is: 510,188,372.22
Step by Step Solution
- Step 1: Write the proportion equation
667,040,245.49 : 920,515,626.03 = 369,701,683.95 : x - Step 2: Convert to fraction form
667,040,245.49/920,515,626.03 = 369,701,683.95/x - Step 3: Cross multiply
667,040,245.49x = 920,515,626.03 × 369,701,683.95 - Step 4: Simplify right side
667,040,245.49x = 340,316,177,050,417,792 - Step 5: Solve for x
x = 340,316,177,050,417,792/667,040,245.49 - Step 6: Final answer
x = 510,188,372.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.