Finding the Fourth Proportional to 128,736,474.99, 193,086,531.23 and 41,286,628.44
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Solution
The fourth proportional to 128,736,474.99, 193,086,531.23 and 41,286,628.44 is: 61,924,111.81
Step by Step Solution
- Step 1: Write the proportion equation
128,736,474.99 : 193,086,531.23 = 41,286,628.44 : x - Step 2: Convert to fraction form
128,736,474.99/193,086,531.23 = 41,286,628.44/x - Step 3: Cross multiply
128,736,474.99x = 193,086,531.23 × 41,286,628.44 - Step 4: Simplify right side
128,736,474.99x = 7,971,891,871,455,032 - Step 5: Solve for x
x = 7,971,891,871,455,032/128,736,474.99 - Step 6: Final answer
x = 61,924,111.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.