Finding the Fourth Proportional to 212,952,744.25, 293,877,642.41 and 120,132,965.05
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Solution
The fourth proportional to 212,952,744.25, 293,877,642.41 and 120,132,965.05 is: 165,785,102.55
Step by Step Solution
- Step 1: Write the proportion equation
212,952,744.25 : 293,877,642.41 = 120,132,965.05 : x - Step 2: Convert to fraction form
212,952,744.25/293,877,642.41 = 120,132,965.05/x - Step 3: Cross multiply
212,952,744.25x = 293,877,642.41 × 120,132,965.05 - Step 4: Simplify right side
212,952,744.25x = 35,304,392,544,182,568 - Step 5: Solve for x
x = 35,304,392,544,182,568/212,952,744.25 - Step 6: Final answer
x = 165,785,102.55
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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.