Finding the Fourth Proportional to 118,345,907.70, 177,518,861.55 and 54,644,915.70
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Solution
The fourth proportional to 118,345,907.70, 177,518,861.55 and 54,644,915.70 is: 81,967,373.55
Step by Step Solution
- Step 1: Write the proportion equation
118,345,907.70 : 177,518,861.55 = 54,644,915.70 : x - Step 2: Convert to fraction form
118,345,907.70/177,518,861.55 = 54,644,915.70/x - Step 3: Cross multiply
118,345,907.70x = 177,518,861.55 × 54,644,915.70 - Step 4: Simplify right side
118,345,907.70x = 9,700,503,224,559,722 - Step 5: Solve for x
x = 9,700,503,224,559,722/118,345,907.70 - Step 6: Final answer
x = 81,967,373.55
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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.