Finding the Fourth Proportional to 17,685,649.20, 26,531,353.36 and 5,223,115.60
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Solution
The fourth proportional to 17,685,649.20, 26,531,353.36 and 5,223,115.60 is: 7,835,523.82
Step by Step Solution
- Step 1: Write the proportion equation
17,685,649.20 : 26,531,353.36 = 5,223,115.60 : x - Step 2: Convert to fraction form
17,685,649.20/26,531,353.36 = 5,223,115.60/x - Step 3: Cross multiply
17,685,649.20x = 26,531,353.36 × 5,223,115.60 - Step 4: Simplify right side
17,685,649.20x = 138,576,325,623,728.41 - Step 5: Solve for x
x = 138,576,325,623,728.41/17,685,649.20 - Step 6: Final answer
x = 7,835,523.82
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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.