Finding the Fourth Proportional to 212,952,745.25, 293,877,643.80 and 120,132,966.05
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Solution
The fourth proportional to 212,952,745.25, 293,877,643.80 and 120,132,966.05 is: 165,785,103.94
Step by Step Solution
- Step 1: Write the proportion equation
212,952,745.25 : 293,877,643.80 = 120,132,966.05 : x - Step 2: Convert to fraction form
212,952,745.25/293,877,643.80 = 120,132,966.05/x - Step 3: Cross multiply
212,952,745.25x = 293,877,643.80 × 120,132,966.05 - Step 4: Simplify right side
212,952,745.25x = 35,304,393,004,744,700 - Step 5: Solve for x
x = 35,304,393,004,744,700/212,952,745.25 - Step 6: Final answer
x = 165,785,103.94
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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.