Finding the Fourth Proportional to 3,156,861.88, 4,357,654.10 and 2,069,203.55
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Solution
The fourth proportional to 3,156,861.88, 4,357,654.10 and 2,069,203.55 is: 2,856,277.43
Step by Step Solution
- Step 1: Write the proportion equation
3,156,861.88 : 4,357,654.10 = 2,069,203.55 : x - Step 2: Convert to fraction form
3,156,861.88/4,357,654.10 = 2,069,203.55/x - Step 3: Cross multiply
3,156,861.88x = 4,357,654.10 × 2,069,203.55 - Step 4: Simplify right side
3,156,861.88x = 9,016,873,333,392.06 - Step 5: Solve for x
x = 9,016,873,333,392.06/3,156,861.88 - Step 6: Final answer
x = 2,856,277.43
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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.