Finding the Fourth Proportional to 9,857,331.20, 14,784,614.40 and 3,126,425.60
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Solution
The fourth proportional to 9,857,331.20, 14,784,614.40 and 3,126,425.60 is: 4,689,199.95
Step by Step Solution
- Step 1: Write the proportion equation
9,857,331.20 : 14,784,614.40 = 3,126,425.60 : x - Step 2: Convert to fraction form
9,857,331.20/14,784,614.40 = 3,126,425.60/x - Step 3: Cross multiply
9,857,331.20x = 14,784,614.40 × 3,126,425.60 - Step 4: Simplify right side
9,857,331.20x = 46,222,996,946,288.64 - Step 5: Solve for x
x = 46,222,996,946,288.64/9,857,331.20 - Step 6: Final answer
x = 4,689,199.95
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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.