Finding the Fourth Proportional to 208,077,299.80, 312,115,949.70 and 195,322,715.80
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Solution
The fourth proportional to 208,077,299.80, 312,115,949.70 and 195,322,715.80 is: 292,984,073.70
Step by Step Solution
- Step 1: Write the proportion equation
208,077,299.80 : 312,115,949.70 = 195,322,715.80 : x - Step 2: Convert to fraction form
208,077,299.80/312,115,949.70 = 195,322,715.80/x - Step 3: Cross multiply
208,077,299.80x = 312,115,949.70 × 195,322,715.80 - Step 4: Simplify right side
208,077,299.80x = 60,963,334,939,900,200 - Step 5: Solve for x
x = 60,963,334,939,900,200/208,077,299.80 - Step 6: Final answer
x = 292,984,073.70
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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.