Finding the Fourth Proportional to 168,451,361.60, 252,456,895.20 and 121,921,517.12
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Solution
The fourth proportional to 168,451,361.60, 252,456,895.20 and 121,921,517.12 is: 182,722,937.81
Step by Step Solution
- Step 1: Write the proportion equation
168,451,361.60 : 252,456,895.20 = 121,921,517.12 : x - Step 2: Convert to fraction form
168,451,361.60/252,456,895.20 = 121,921,517.12/x - Step 3: Cross multiply
168,451,361.60x = 252,456,895.20 × 121,921,517.12 - Step 4: Simplify right side
168,451,361.60x = 30,779,927,670,188,844 - Step 5: Solve for x
x = 30,779,927,670,188,844/168,451,361.60 - Step 6: Final answer
x = 182,722,937.81
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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.