Finding the Fourth Proportional to 25,434,840.38, 35,107,982.97 and 20,217,106.99
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Solution
The fourth proportional to 25,434,840.38, 35,107,982.97 and 20,217,106.99 is: 27,905,889.60
Step by Step Solution
- Step 1: Write the proportion equation
25,434,840.38 : 35,107,982.97 = 20,217,106.99 : x - Step 2: Convert to fraction form
25,434,840.38/35,107,982.97 = 20,217,106.99/x - Step 3: Cross multiply
25,434,840.38x = 35,107,982.97 × 20,217,106.99 - Step 4: Simplify right side
25,434,840.38x = 709,781,847,732,048 - Step 5: Solve for x
x = 709,781,847,732,048/25,434,840.38 - Step 6: Final answer
x = 27,905,889.60
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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.