Finding the Fourth Proportional to 7,260,143.76, 10,018,638 and 3,996,888.42
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Solution
The fourth proportional to 7,260,143.76, 10,018,638 and 3,996,888.42 is: 5,515,507.62
Step by Step Solution
- Step 1: Write the proportion equation
7,260,143.76 : 10,018,638 = 3,996,888.42 : x - Step 2: Convert to fraction form
7,260,143.76/10,018,638 = 3,996,888.42/x - Step 3: Cross multiply
7,260,143.76x = 10,018,638 × 3,996,888.42 - Step 4: Simplify right side
7,260,143.76x = 40,043,378,206,371.96 - Step 5: Solve for x
x = 40,043,378,206,371.96/7,260,143.76 - Step 6: Final answer
x = 5,515,507.62
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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.