Finding the Fourth Proportional to 61,327,861.20, 91,991,791.80 and 57,548,725.20
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Solution
The fourth proportional to 61,327,861.20, 91,991,791.80 and 57,548,725.20 is: 86,323,087.80
Step by Step Solution
- Step 1: Write the proportion equation
61,327,861.20 : 91,991,791.80 = 57,548,725.20 : x - Step 2: Convert to fraction form
61,327,861.20/91,991,791.80 = 57,548,725.20/x - Step 3: Cross multiply
61,327,861.20x = 91,991,791.80 × 57,548,725.20 - Step 4: Simplify right side
61,327,861.20x = 5,294,010,346,953,813 - Step 5: Solve for x
x = 5,294,010,346,953,813/61,327,861.20 - Step 6: Final answer
x = 86,323,087.80
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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.