Finding the Fourth Proportional to 21,821,299.80, 32,694,909.51 and 13,167,216.75
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Solution
The fourth proportional to 21,821,299.80, 32,694,909.51 and 13,167,216.75 is: 19,728,474.66
Step by Step Solution
- Step 1: Write the proportion equation
21,821,299.80 : 32,694,909.51 = 13,167,216.75 : x - Step 2: Convert to fraction form
21,821,299.80/32,694,909.51 = 13,167,216.75/x - Step 3: Cross multiply
21,821,299.80x = 32,694,909.51 × 13,167,216.75 - Step 4: Simplify right side
21,821,299.80x = 430,500,960,139,806.31 - Step 5: Solve for x
x = 430,500,960,139,806.31/21,821,299.80 - Step 6: Final answer
x = 19,728,474.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.