Finding the Fourth Proportional to 16,353,640.80, 24,503,889.15 and 13,643,291.70
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Solution
The fourth proportional to 16,353,640.80, 24,503,889.15 and 13,643,291.70 is: 20,442,769.38
Step by Step Solution
- Step 1: Write the proportion equation
16,353,640.80 : 24,503,889.15 = 13,643,291.70 : x - Step 2: Convert to fraction form
16,353,640.80/24,503,889.15 = 13,643,291.70/x - Step 3: Cross multiply
16,353,640.80x = 24,503,889.15 × 13,643,291.70 - Step 4: Simplify right side
16,353,640.80x = 334,313,707,457,915 - Step 5: Solve for x
x = 334,313,707,457,915/16,353,640.80 - Step 6: Final answer
x = 20,442,769.38
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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.