Finding the Fourth Proportional to 165,646,148.87, 228,601,912.65 and 91,306,541.75
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Solution
The fourth proportional to 165,646,148.87, 228,601,912.65 and 91,306,541.75 is: 126,008,664.99
Step by Step Solution
- Step 1: Write the proportion equation
165,646,148.87 : 228,601,912.65 = 91,306,541.75 : x - Step 2: Convert to fraction form
165,646,148.87/228,601,912.65 = 91,306,541.75/x - Step 3: Cross multiply
165,646,148.87x = 228,601,912.65 × 91,306,541.75 - Step 4: Simplify right side
165,646,148.87x = 20,872,850,080,364,072 - Step 5: Solve for x
x = 20,872,850,080,364,072/165,646,148.87 - Step 6: Final answer
x = 126,008,664.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.