Finding the Fourth Proportional to 170,916,268.20, 235,630,190.34 and 108,161,148.84
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Solution
The fourth proportional to 170,916,268.20, 235,630,190.34 and 108,161,148.84 is: 149,114,138.50
Step by Step Solution
- Step 1: Write the proportion equation
170,916,268.20 : 235,630,190.34 = 108,161,148.84 : x - Step 2: Convert to fraction form
170,916,268.20/235,630,190.34 = 108,161,148.84/x - Step 3: Cross multiply
170,916,268.20x = 235,630,190.34 × 108,161,148.84 - Step 4: Simplify right side
170,916,268.20x = 25,486,032,088,562,272 - Step 5: Solve for x
x = 25,486,032,088,562,272/170,916,268.20 - Step 6: Final answer
x = 149,114,138.50
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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.