Finding the Fourth Proportional to 177,411,738.80, 266,117,608.20 and 81,860,250.80
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Solution
The fourth proportional to 177,411,738.80, 266,117,608.20 and 81,860,250.80 is: 122,790,376.20
Step by Step Solution
- Step 1: Write the proportion equation
177,411,738.80 : 266,117,608.20 = 81,860,250.80 : x - Step 2: Convert to fraction form
177,411,738.80/266,117,608.20 = 81,860,250.80/x - Step 3: Cross multiply
177,411,738.80x = 266,117,608.20 × 81,860,250.80 - Step 4: Simplify right side
177,411,738.80x = 21,784,454,149,548,136 - Step 5: Solve for x
x = 21,784,454,149,548,136/177,411,738.80 - Step 6: Final answer
x = 122,790,376.20
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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.