Finding the Fourth Proportional to 61,203,907.80, 91,805,861.70 and 53,232,292.80
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Solution
The fourth proportional to 61,203,907.80, 91,805,861.70 and 53,232,292.80 is: 79,848,439.20
Step by Step Solution
- Step 1: Write the proportion equation
61,203,907.80 : 91,805,861.70 = 53,232,292.80 : x - Step 2: Convert to fraction form
61,203,907.80/91,805,861.70 = 53,232,292.80/x - Step 3: Cross multiply
61,203,907.80x = 91,805,861.70 × 53,232,292.80 - Step 4: Simplify right side
61,203,907.80x = 4,887,036,510,770,706 - Step 5: Solve for x
x = 4,887,036,510,770,706/61,203,907.80 - Step 6: Final answer
x = 79,848,439.20
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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.