Finding the Fourth Proportional to 4,031,837.92, 5,562,968.88 and 2,289,121.12
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Solution
The fourth proportional to 4,031,837.92, 5,562,968.88 and 2,289,121.12 is: 3,158,437.87
Step by Step Solution
- Step 1: Write the proportion equation
4,031,837.92 : 5,562,968.88 = 2,289,121.12 : x - Step 2: Convert to fraction form
4,031,837.92/5,562,968.88 = 2,289,121.12/x - Step 3: Cross multiply
4,031,837.92x = 5,562,968.88 × 2,289,121.12 - Step 4: Simplify right side
4,031,837.92x = 12,734,309,553,110.75 - Step 5: Solve for x
x = 12,734,309,553,110.75/4,031,837.92 - Step 6: Final answer
x = 3,158,437.87
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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.