Finding the Fourth Proportional to 18,536,154.18, 25,581,403.29 and 10,278,805.80
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Solution
The fourth proportional to 18,536,154.18, 25,581,403.29 and 10,278,805.80 is: 14,185,589.63
Step by Step Solution
- Step 1: Write the proportion equation
18,536,154.18 : 25,581,403.29 = 10,278,805.80 : x - Step 2: Convert to fraction form
18,536,154.18/25,581,403.29 = 10,278,805.80/x - Step 3: Cross multiply
18,536,154.18x = 25,581,403.29 × 10,278,805.80 - Step 4: Simplify right side
18,536,154.18x = 262,946,276,509,391.09 - Step 5: Solve for x
x = 262,946,276,509,391.09/18,536,154.18 - Step 6: Final answer
x = 14,185,589.63
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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.