Finding the Fourth Proportional to 186,979,972.68, 280,381,684.68 and 109,279,167.48
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Solution
The fourth proportional to 186,979,972.68, 280,381,684.68 and 109,279,167.48 is: 163,867,159.89
Step by Step Solution
- Step 1: Write the proportion equation
186,979,972.68 : 280,381,684.68 = 109,279,167.48 : x - Step 2: Convert to fraction form
186,979,972.68/280,381,684.68 = 109,279,167.48/x - Step 3: Cross multiply
186,979,972.68x = 280,381,684.68 × 109,279,167.48 - Step 4: Simplify right side
186,979,972.68x = 30,639,877,078,470,272 - Step 5: Solve for x
x = 30,639,877,078,470,272/186,979,972.68 - Step 6: Final answer
x = 163,867,159.89
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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.