Finding the Fourth Proportional to 21,659,995.20, 32,489,992.80 and 8,876,251.20
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Solution
The fourth proportional to 21,659,995.20, 32,489,992.80 and 8,876,251.20 is: 13,314,376.80
Step by Step Solution
- Step 1: Write the proportion equation
21,659,995.20 : 32,489,992.80 = 8,876,251.20 : x - Step 2: Convert to fraction form
21,659,995.20/32,489,992.80 = 8,876,251.20/x - Step 3: Cross multiply
21,659,995.20x = 32,489,992.80 × 8,876,251.20 - Step 4: Simplify right side
21,659,995.20x = 288,389,337,578,991.31 - Step 5: Solve for x
x = 288,389,337,578,991.31/21,659,995.20 - Step 6: Final answer
x = 13,314,376.80
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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.