Finding the Fourth Proportional to 53,992,907.20, 80,996,464.80 and 19,938,174.40
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Solution
The fourth proportional to 53,992,907.20, 80,996,464.80 and 19,938,174.40 is: 29,909,884.92
Step by Step Solution
- Step 1: Write the proportion equation
53,992,907.20 : 80,996,464.80 = 19,938,174.40 : x - Step 2: Convert to fraction form
53,992,907.20/80,996,464.80 = 19,938,174.40/x - Step 3: Cross multiply
53,992,907.20x = 80,996,464.80 × 19,938,174.40 - Step 4: Simplify right side
53,992,907.20x = 1,614,921,640,965,861 - Step 5: Solve for x
x = 1,614,921,640,965,861/53,992,907.20 - Step 6: Final answer
x = 29,909,884.92
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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.