Finding the Fourth Proportional to 128,952,170.40, 193,507,557.60 and 51,215,474.08
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Solution
The fourth proportional to 128,952,170.40, 193,507,557.60 and 51,215,474.08 is: 76,854,707.21
Step by Step Solution
- Step 1: Write the proportion equation
128,952,170.40 : 193,507,557.60 = 51,215,474.08 : x - Step 2: Convert to fraction form
128,952,170.40/193,507,557.60 = 51,215,474.08/x - Step 3: Cross multiply
128,952,170.40x = 193,507,557.60 × 51,215,474.08 - Step 4: Simplify right side
128,952,170.40x = 9,910,581,300,546,906 - Step 5: Solve for x
x = 9,910,581,300,546,906/128,952,170.40 - Step 6: Final answer
x = 76,854,707.21
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.