Finding the Fourth Proportional to 128,091,679.97, 192,149,331.57 and 41,830,538.81
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Solution
The fourth proportional to 128,091,679.97, 192,149,331.57 and 41,830,538.81 is: 62,749,665.50
Step by Step Solution
- Step 1: Write the proportion equation
128,091,679.97 : 192,149,331.57 = 41,830,538.81 : x - Step 2: Convert to fraction form
128,091,679.97/192,149,331.57 = 41,830,538.81/x - Step 3: Cross multiply
128,091,679.97x = 192,149,331.57 × 41,830,538.81 - Step 4: Simplify right side
128,091,679.97x = 8,037,710,070,593,696 - Step 5: Solve for x
x = 8,037,710,070,593,696/128,091,679.97 - Step 6: Final answer
x = 62,749,665.50
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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.