Finding the Fourth Proportional to 66,544,251.20, 99,648,415.20 and 43,701,473.60
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Solution
The fourth proportional to 66,544,251.20, 99,648,415.20 and 43,701,473.60 is: 65,441,905.31
Step by Step Solution
- Step 1: Write the proportion equation
66,544,251.20 : 99,648,415.20 = 43,701,473.60 : x - Step 2: Convert to fraction form
66,544,251.20/99,648,415.20 = 43,701,473.60/x - Step 3: Cross multiply
66,544,251.20x = 99,648,415.20 × 43,701,473.60 - Step 4: Simplify right side
66,544,251.20x = 4,354,782,586,144,639 - Step 5: Solve for x
x = 4,354,782,586,144,639/66,544,251.20 - Step 6: Final answer
x = 65,441,905.31
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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.