Finding the Fourth Proportional to 28,005,278.80, 41,991,329.40 and 14,568,350.80
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Solution
The fourth proportional to 28,005,278.80, 41,991,329.40 and 14,568,350.80 is: 21,843,896.70
Step by Step Solution
- Step 1: Write the proportion equation
28,005,278.80 : 41,991,329.40 = 14,568,350.80 : x - Step 2: Convert to fraction form
28,005,278.80/41,991,329.40 = 14,568,350.80/x - Step 3: Cross multiply
28,005,278.80x = 41,991,329.40 × 14,568,350.80 - Step 4: Simplify right side
28,005,278.80x = 611,744,417,257,553.50 - Step 5: Solve for x
x = 611,744,417,257,553.50/28,005,278.80 - Step 6: Final answer
x = 21,843,896.70
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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.