Finding the Fourth Proportional to 20,467,352.63, 28,247,423.46 and 11,648,948.09
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Solution
The fourth proportional to 20,467,352.63, 28,247,423.46 and 11,648,948.09 is: 16,076,958.05
Step by Step Solution
- Step 1: Write the proportion equation
20,467,352.63 : 28,247,423.46 = 11,648,948.09 : x - Step 2: Convert to fraction form
20,467,352.63/28,247,423.46 = 11,648,948.09/x - Step 3: Cross multiply
20,467,352.63x = 28,247,423.46 × 11,648,948.09 - Step 4: Simplify right side
20,467,352.63x = 329,052,769,561,788.19 - Step 5: Solve for x
x = 329,052,769,561,788.19/20,467,352.63 - Step 6: Final answer
x = 16,076,958.05
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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.