Finding the Fourth Proportional to 186,979,952.68, 280,381,654.68 and 109,279,147.48
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Solution
The fourth proportional to 186,979,952.68, 280,381,654.68 and 109,279,147.48 is: 163,867,129.89
Step by Step Solution
- Step 1: Write the proportion equation
186,979,952.68 : 280,381,654.68 = 109,279,147.48 : x - Step 2: Convert to fraction form
186,979,952.68/280,381,654.68 = 109,279,147.48/x - Step 3: Cross multiply
186,979,952.68x = 280,381,654.68 × 109,279,147.48 - Step 4: Simplify right side
186,979,952.68x = 30,639,868,192,462,156 - Step 5: Solve for x
x = 30,639,868,192,462,156/186,979,952.68 - Step 6: Final answer
x = 163,867,129.89
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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.