Finding the Fourth Proportional to 5,430,839.40, 8,150,851.80 and 2,238,256.80
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Solution
The fourth proportional to 5,430,839.40, 8,150,851.80 and 2,238,256.80 is: 3,359,278.03
Step by Step Solution
- Step 1: Write the proportion equation
5,430,839.40 : 8,150,851.80 = 2,238,256.80 : x - Step 2: Convert to fraction form
5,430,839.40/8,150,851.80 = 2,238,256.80/x - Step 3: Cross multiply
5,430,839.40x = 8,150,851.80 × 2,238,256.80 - Step 4: Simplify right side
5,430,839.40x = 18,243,699,467,142.24 - Step 5: Solve for x
x = 18,243,699,467,142.24/5,430,839.40 - Step 6: Final answer
x = 3,359,278.03
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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.