Finding the Fourth Proportional to 310,815,183.66, 465,992,932.69 and 187,966,189.63
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Solution
The fourth proportional to 310,815,183.66, 465,992,932.69 and 187,966,189.63 is: 281,810,286.50
Step by Step Solution
- Step 1: Write the proportion equation
310,815,183.66 : 465,992,932.69 = 187,966,189.63 : x - Step 2: Convert to fraction form
310,815,183.66/465,992,932.69 = 187,966,189.63/x - Step 3: Cross multiply
310,815,183.66x = 465,992,932.69 × 187,966,189.63 - Step 4: Simplify right side
310,815,183.66x = 87,590,915,954,906,224 - Step 5: Solve for x
x = 87,590,915,954,906,224/310,815,183.66 - Step 6: Final answer
x = 281,810,286.50
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1.5x scale
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.