Finding the Fourth Proportional to 212,952,747.38, 293,877,646.74 and 120,132,968.18
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Solution
The fourth proportional to 212,952,747.38, 293,877,646.74 and 120,132,968.18 is: 165,785,106.88
Step by Step Solution
- Step 1: Write the proportion equation
212,952,747.38 : 293,877,646.74 = 120,132,968.18 : x - Step 2: Convert to fraction form
212,952,747.38/293,877,646.74 = 120,132,968.18/x - Step 3: Cross multiply
212,952,747.38x = 293,877,646.74 × 120,132,968.18 - Step 4: Simplify right side
212,952,747.38x = 35,304,393,984,629,704 - Step 5: Solve for x
x = 35,304,393,984,629,704/212,952,747.38 - Step 6: Final answer
x = 165,785,106.88
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1.5x scale
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.