Finding the Fourth Proportional to 99,645,361.80, 149,468,042.70 and 48,627,025.80
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Solution
The fourth proportional to 99,645,361.80, 149,468,042.70 and 48,627,025.80 is: 72,940,538.70
Step by Step Solution
- Step 1: Write the proportion equation
99,645,361.80 : 149,468,042.70 = 48,627,025.80 : x - Step 2: Convert to fraction form
99,645,361.80/149,468,042.70 = 48,627,025.80/x - Step 3: Cross multiply
99,645,361.80x = 149,468,042.70 × 48,627,025.80 - Step 4: Simplify right side
99,645,361.80x = 7,268,186,368,648,401 - Step 5: Solve for x
x = 7,268,186,368,648,401/99,645,361.80 - Step 6: Final answer
x = 72,940,538.70
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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.