Finding the Fourth Proportional to 20,159,582.40, 30,251,183.40 and 7,381,378.80
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Solution
The fourth proportional to 20,159,582.40, 30,251,183.40 and 7,381,378.80 is: 11,076,392.33
Step by Step Solution
- Step 1: Write the proportion equation
20,159,582.40 : 30,251,183.40 = 7,381,378.80 : x - Step 2: Convert to fraction form
20,159,582.40/30,251,183.40 = 7,381,378.80/x - Step 3: Cross multiply
20,159,582.40x = 30,251,183.40 × 7,381,378.80 - Step 4: Simplify right side
20,159,582.40x = 223,295,443,823,671.91 - Step 5: Solve for x
x = 223,295,443,823,671.91/20,159,582.40 - Step 6: Final answer
x = 11,076,392.33
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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.