Finding the Fourth Proportional to 205,126,919.80, 307,690,379.70 and 61,519,751.80
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Solution
The fourth proportional to 205,126,919.80, 307,690,379.70 and 61,519,751.80 is: 92,279,627.70
Step by Step Solution
- Step 1: Write the proportion equation
205,126,919.80 : 307,690,379.70 = 61,519,751.80 : x - Step 2: Convert to fraction form
205,126,919.80/307,690,379.70 = 61,519,751.80/x - Step 3: Cross multiply
205,126,919.80x = 307,690,379.70 × 61,519,751.80 - Step 4: Simplify right side
205,126,919.80x = 18,929,035,790,391,756 - Step 5: Solve for x
x = 18,929,035,790,391,756/205,126,919.80 - Step 6: Final answer
x = 92,279,627.70
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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.