Finding the Fourth Proportional to 172,628,446.18, 258,979,994.07 and 91,837,672.42
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Solution
The fourth proportional to 172,628,446.18, 258,979,994.07 and 91,837,672.42 is: 137,776,365.28
Step by Step Solution
- Step 1: Write the proportion equation
172,628,446.18 : 258,979,994.07 = 91,837,672.42 : x - Step 2: Convert to fraction form
172,628,446.18/258,979,994.07 = 91,837,672.42/x - Step 3: Cross multiply
172,628,446.18x = 258,979,994.07 × 91,837,672.42 - Step 4: Simplify right side
172,628,446.18x = 23,784,119,858,734,204 - Step 5: Solve for x
x = 23,784,119,858,734,204/172,628,446.18 - Step 6: Final answer
x = 137,776,365.28
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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.