Finding the Fourth Proportional to 186,138,411.20, 279,207,616.80 and 49,823,794.70
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Solution
The fourth proportional to 186,138,411.20, 279,207,616.80 and 49,823,794.70 is: 74,735,692.05
Step by Step Solution
- Step 1: Write the proportion equation
186,138,411.20 : 279,207,616.80 = 49,823,794.70 : x - Step 2: Convert to fraction form
186,138,411.20/279,207,616.80 = 49,823,794.70/x - Step 3: Cross multiply
186,138,411.20x = 279,207,616.80 × 49,823,794.70 - Step 4: Simplify right side
186,138,411.20x = 13,911,182,978,119,472 - Step 5: Solve for x
x = 13,911,182,978,119,472/186,138,411.20 - Step 6: Final answer
x = 74,735,692.05
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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.