Finding the Fourth Proportional to 136,751,251.20, 205,126,876.80 and 41,013,139.20
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Solution
The fourth proportional to 136,751,251.20, 205,126,876.80 and 41,013,139.20 is: 61,519,708.80
Step by Step Solution
- Step 1: Write the proportion equation
136,751,251.20 : 205,126,876.80 = 41,013,139.20 : x - Step 2: Convert to fraction form
136,751,251.20/205,126,876.80 = 41,013,139.20/x - Step 3: Cross multiply
136,751,251.20x = 205,126,876.80 × 41,013,139.20 - Step 4: Simplify right side
136,751,251.20x = 8,412,897,151,859,652 - Step 5: Solve for x
x = 8,412,897,151,859,652/136,751,251.20 - Step 6: Final answer
x = 61,519,708.80
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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.