Finding the Fourth Proportional to 38,481,208.80, 57,641,331.60 and 18,028,384.80
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Solution
The fourth proportional to 38,481,208.80, 57,641,331.60 and 18,028,384.80 is: 27,004,871.70
Step by Step Solution
- Step 1: Write the proportion equation
38,481,208.80 : 57,641,331.60 = 18,028,384.80 : x - Step 2: Convert to fraction form
38,481,208.80/57,641,331.60 = 18,028,384.80/x - Step 3: Cross multiply
38,481,208.80x = 57,641,331.60 × 18,028,384.80 - Step 4: Simplify right side
38,481,208.80x = 1,039,180,106,469,199.75 - Step 5: Solve for x
x = 1,039,180,106,469,199.75/38,481,208.80 - Step 6: Final answer
x = 27,004,871.70
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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.