Finding the Fourth Proportional to 136,751,321.70, 205,126,982.55 and 41,013,209.70
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Solution
The fourth proportional to 136,751,321.70, 205,126,982.55 and 41,013,209.70 is: 61,519,814.55
Step by Step Solution
- Step 1: Write the proportion equation
136,751,321.70 : 205,126,982.55 = 41,013,209.70 : x - Step 2: Convert to fraction form
136,751,321.70/205,126,982.55 = 41,013,209.70/x - Step 3: Cross multiply
136,751,321.70x = 205,126,982.55 × 41,013,209.70 - Step 4: Simplify right side
136,751,321.70x = 8,412,915,950,451,392 - Step 5: Solve for x
x = 8,412,915,950,451,392/136,751,321.70 - Step 6: Final answer
x = 61,519,814.55
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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.