Finding the Fourth Proportional to 29,748,847.44, 41,069,699.22 and 20,821,697.46
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Solution
The fourth proportional to 29,748,847.44, 41,069,699.22 and 20,821,697.46 is: 28,745,343.96
Step by Step Solution
- Step 1: Write the proportion equation
29,748,847.44 : 41,069,699.22 = 20,821,697.46 : x - Step 2: Convert to fraction form
29,748,847.44/41,069,699.22 = 20,821,697.46/x - Step 3: Cross multiply
29,748,847.44x = 41,069,699.22 × 20,821,697.46 - Step 4: Simplify right side
29,748,847.44x = 855,140,851,932,038 - Step 5: Solve for x
x = 855,140,851,932,038/29,748,847.44 - Step 6: Final answer
x = 28,745,343.96
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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.