Finding the Fourth Proportional to 120,944,871.72, 166,918,092.66 and 68,741,754.66
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Solution
The fourth proportional to 120,944,871.72, 166,918,092.66 and 68,741,754.66 is: 94,871,675.09
Step by Step Solution
- Step 1: Write the proportion equation
120,944,871.72 : 166,918,092.66 = 68,741,754.66 : x - Step 2: Convert to fraction form
120,944,871.72/166,918,092.66 = 68,741,754.66/x - Step 3: Cross multiply
120,944,871.72x = 166,918,092.66 × 68,741,754.66 - Step 4: Simplify right side
120,944,871.72x = 11,474,242,573,948,866 - Step 5: Solve for x
x = 11,474,242,573,948,866/120,944,871.72 - Step 6: Final answer
x = 94,871,675.09
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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.