Finding the Fourth Proportional to 186,624,167.60, 279,936,251.40 and 128,994,676.40
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Solution
The fourth proportional to 186,624,167.60, 279,936,251.40 and 128,994,676.40 is: 193,492,014.60
Step by Step Solution
- Step 1: Write the proportion equation
186,624,167.60 : 279,936,251.40 = 128,994,676.40 : x - Step 2: Convert to fraction form
186,624,167.60/279,936,251.40 = 128,994,676.40/x - Step 3: Cross multiply
186,624,167.60x = 279,936,251.40 × 128,994,676.40 - Step 4: Simplify right side
186,624,167.60x = 36,110,286,161,972,048 - Step 5: Solve for x
x = 36,110,286,161,972,048/186,624,167.60 - Step 6: Final answer
x = 193,492,014.60
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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.