Finding the Fourth Proportional to 212,787,635.60, 318,933,447.60 and 97,783,803.20
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Solution
The fourth proportional to 212,787,635.60, 318,933,447.60 and 97,783,803.20 is: 146,561,736.95
Step by Step Solution
- Step 1: Write the proportion equation
212,787,635.60 : 318,933,447.60 = 97,783,803.20 : x - Step 2: Convert to fraction form
212,787,635.60/318,933,447.60 = 97,783,803.20/x - Step 3: Cross multiply
212,787,635.60x = 318,933,447.60 × 97,783,803.20 - Step 4: Simplify right side
212,787,635.60x = 31,186,525,474,015,916 - Step 5: Solve for x
x = 31,186,525,474,015,916/212,787,635.60 - Step 6: Final answer
x = 146,561,736.95
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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.