Finding the Fourth Proportional to 2,129,203.20, 2,930,842.32 and 1,856,790.48
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Solution
The fourth proportional to 2,129,203.20, 2,930,842.32 and 1,856,790.48 is: 2,555,866.96
Step by Step Solution
- Step 1: Write the proportion equation
2,129,203.20 : 2,930,842.32 = 1,856,790.48 : x - Step 2: Convert to fraction form
2,129,203.20/2,930,842.32 = 1,856,790.48/x - Step 3: Cross multiply
2,129,203.20x = 2,930,842.32 × 1,856,790.48 - Step 4: Simplify right side
2,129,203.20x = 5,441,960,118,157.11 - Step 5: Solve for x
x = 5,441,960,118,157.11/2,129,203.20 - Step 6: Final answer
x = 2,555,866.96
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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.