Finding the Fourth Proportional to 25,026,815.68, 37,554,424.64 and 13,512,129.60
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Solution
The fourth proportional to 25,026,815.68, 37,554,424.64 and 13,512,129.60 is: 20,275,861.67
Step by Step Solution
- Step 1: Write the proportion equation
25,026,815.68 : 37,554,424.64 = 13,512,129.60 : x - Step 2: Convert to fraction form
25,026,815.68/37,554,424.64 = 13,512,129.60/x - Step 3: Cross multiply
25,026,815.68x = 37,554,424.64 × 13,512,129.60 - Step 4: Simplify right side
25,026,815.68x = 507,440,252,789,113.31 - Step 5: Solve for x
x = 507,440,252,789,113.31/25,026,815.68 - Step 6: Final answer
x = 20,275,861.67
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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.