Finding the Fourth Proportional to 66,518,122.20, 99,795,845.70 and 32,440,579.80
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Solution
The fourth proportional to 66,518,122.20, 99,795,845.70 and 32,440,579.80 is: 48,669,971.27
Step by Step Solution
- Step 1: Write the proportion equation
66,518,122.20 : 99,795,845.70 = 32,440,579.80 : x - Step 2: Convert to fraction form
66,518,122.20/99,795,845.70 = 32,440,579.80/x - Step 3: Cross multiply
66,518,122.20x = 99,795,845.70 × 32,440,579.80 - Step 4: Simplify right side
66,518,122.20x = 3,237,435,096,139,337 - Step 5: Solve for x
x = 3,237,435,096,139,337/66,518,122.20 - Step 6: Final answer
x = 48,669,971.27
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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.