Finding the Fourth Proportional to 19,991,021.44, 29,986,531.52 and 4,844,952.96
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Solution
The fourth proportional to 19,991,021.44, 29,986,531.52 and 4,844,952.96 is: 7,267,429.28
Step by Step Solution
- Step 1: Write the proportion equation
19,991,021.44 : 29,986,531.52 = 4,844,952.96 : x - Step 2: Convert to fraction form
19,991,021.44/29,986,531.52 = 4,844,952.96/x - Step 3: Cross multiply
19,991,021.44x = 29,986,531.52 × 4,844,952.96 - Step 4: Simplify right side
19,991,021.44x = 145,283,334,647,957.28 - Step 5: Solve for x
x = 145,283,334,647,957.28/19,991,021.44 - Step 6: Final answer
x = 7,267,429.28
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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.