Finding the Fourth Proportional to 287,518,129.68, 431,123,755.88 and 149,204,474.94
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Solution
The fourth proportional to 287,518,129.68, 431,123,755.88 and 149,204,474.94 is: 223,727,087.06
Step by Step Solution
- Step 1: Write the proportion equation
287,518,129.68 : 431,123,755.88 = 149,204,474.94 : x - Step 2: Convert to fraction form
287,518,129.68/431,123,755.88 = 149,204,474.94/x - Step 3: Cross multiply
287,518,129.68x = 431,123,755.88 × 149,204,474.94 - Step 4: Simplify right side
287,518,129.68x = 64,325,593,630,236,136 - Step 5: Solve for x
x = 64,325,593,630,236,136/287,518,129.68 - Step 6: Final answer
x = 223,727,087.06
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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.