Finding the Fourth Proportional to 120,944,797.49, 166,917,990.08 and 68,741,680.21
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Solution
The fourth proportional to 120,944,797.49, 166,917,990.08 and 68,741,680.21 is: 94,871,572.26
Step by Step Solution
- Step 1: Write the proportion equation
120,944,797.49 : 166,917,990.08 = 68,741,680.21 : x - Step 2: Convert to fraction form
120,944,797.49/166,917,990.08 = 68,741,680.21/x - Step 3: Cross multiply
120,944,797.49x = 166,917,990.08 × 68,741,680.21 - Step 4: Simplify right side
120,944,797.49x = 11,474,223,095,129,872 - Step 5: Solve for x
x = 11,474,223,095,129,872/120,944,797.49 - Step 6: Final answer
x = 94,871,572.26
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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.