Finding the Fourth Proportional to 142,197,874.96, 213,296,812.46 and 39,961,912.58
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Solution
The fourth proportional to 142,197,874.96, 213,296,812.46 and 39,961,912.58 is: 59,942,868.88
Step by Step Solution
- Step 1: Write the proportion equation
142,197,874.96 : 213,296,812.46 = 39,961,912.58 : x - Step 2: Convert to fraction form
142,197,874.96/213,296,812.46 = 39,961,912.58/x - Step 3: Cross multiply
142,197,874.96x = 213,296,812.46 × 39,961,912.58 - Step 4: Simplify right side
142,197,874.96x = 8,523,748,573,119,175 - Step 5: Solve for x
x = 8,523,748,573,119,175/142,197,874.96 - Step 6: Final answer
x = 59,942,868.88
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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.