Finding the Fourth Proportional to 61,235,999.20, 91,853,998.80 and 55,177,571.80
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Solution
The fourth proportional to 61,235,999.20, 91,853,998.80 and 55,177,571.80 is: 82,766,357.70
Step by Step Solution
- Step 1: Write the proportion equation
61,235,999.20 : 91,853,998.80 = 55,177,571.80 : x - Step 2: Convert to fraction form
61,235,999.20/91,853,998.80 = 55,177,571.80/x - Step 3: Cross multiply
61,235,999.20x = 91,853,998.80 × 55,177,571.80 - Step 4: Simplify right side
61,235,999.20x = 5,068,280,613,904,113 - Step 5: Solve for x
x = 5,068,280,613,904,113/61,235,999.20 - Step 6: Final answer
x = 82,766,357.70
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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.