Finding the Fourth Proportional to 42,174,013.20, 63,135,048.60 and 25,125,910.80
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Solution
The fourth proportional to 42,174,013.20, 63,135,048.60 and 25,125,910.80 is: 37,613,816.64
Step by Step Solution
- Step 1: Write the proportion equation
42,174,013.20 : 63,135,048.60 = 25,125,910.80 : x - Step 2: Convert to fraction form
42,174,013.20/63,135,048.60 = 25,125,910.80/x - Step 3: Cross multiply
42,174,013.20x = 63,135,048.60 × 25,125,910.80 - Step 4: Simplify right side
42,174,013.20x = 1,586,325,599,477,265 - Step 5: Solve for x
x = 1,586,325,599,477,265/42,174,013.20 - Step 6: Final answer
x = 37,613,816.64
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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.