Finding the Fourth Proportional to 29,305,202.81, 43,948,807.41 and 20,265,391.40
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Solution
The fourth proportional to 29,305,202.81, 43,948,807.41 and 20,265,391.40 is: 30,391,865.55
Step by Step Solution
- Step 1: Write the proportion equation
29,305,202.81 : 43,948,807.41 = 20,265,391.40 : x - Step 2: Convert to fraction form
29,305,202.81/43,948,807.41 = 20,265,391.40/x - Step 3: Cross multiply
29,305,202.81x = 43,948,807.41 × 20,265,391.40 - Step 4: Simplify right side
29,305,202.81x = 890,639,783,595,939 - Step 5: Solve for x
x = 890,639,783,595,939/29,305,202.81 - Step 6: Final answer
x = 30,391,865.55
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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.