Finding the Fourth Proportional to 149,563,414.82, 206,431,949.83 and 87,703,682.42
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Solution
The fourth proportional to 149,563,414.82, 206,431,949.83 and 87,703,682.42 is: 121,051,275.75
Step by Step Solution
- Step 1: Write the proportion equation
149,563,414.82 : 206,431,949.83 = 87,703,682.42 : x - Step 2: Convert to fraction form
149,563,414.82/206,431,949.83 = 87,703,682.42/x - Step 3: Cross multiply
149,563,414.82x = 206,431,949.83 × 87,703,682.42 - Step 4: Simplify right side
149,563,414.82x = 18,104,842,169,360,028 - Step 5: Solve for x
x = 18,104,842,169,360,028/149,563,414.82 - Step 6: Final answer
x = 121,051,275.75
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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.