Finding the Fourth Proportional to 39,930,922.40, 55,104,672.48 and 21,596,207.36
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Solution
The fourth proportional to 39,930,922.40, 55,104,672.48 and 21,596,207.36 is: 29,802,765.92
Step by Step Solution
- Step 1: Write the proportion equation
39,930,922.40 : 55,104,672.48 = 21,596,207.36 : x - Step 2: Convert to fraction form
39,930,922.40/55,104,672.48 = 21,596,207.36/x - Step 3: Cross multiply
39,930,922.40x = 55,104,672.48 × 21,596,207.36 - Step 4: Simplify right side
39,930,922.40x = 1,190,051,933,382,965.25 - Step 5: Solve for x
x = 1,190,051,933,382,965.25/39,930,922.40 - Step 6: Final answer
x = 29,802,765.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.