Finding the Fourth Proportional to 2,861,991.81, 4,285,901.79 and 2,102,031.18
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Solution
The fourth proportional to 2,861,991.81, 4,285,901.79 and 2,102,031.18 is: 3,147,842.41
Step by Step Solution
- Step 1: Write the proportion equation
2,861,991.81 : 4,285,901.79 = 2,102,031.18 : x - Step 2: Convert to fraction form
2,861,991.81/4,285,901.79 = 2,102,031.18/x - Step 3: Cross multiply
2,861,991.81x = 4,285,901.79 × 2,102,031.18 - Step 4: Simplify right side
2,861,991.81x = 9,009,099,196,997.81 - Step 5: Solve for x
x = 9,009,099,196,997.81/2,861,991.81 - Step 6: Final answer
x = 3,147,842.41
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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.