Finding the Fourth Proportional to 209,952,331.60, 314,928,497.40 and 193,324,133.20
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Solution
The fourth proportional to 209,952,331.60, 314,928,497.40 and 193,324,133.20 is: 289,986,199.80
Step by Step Solution
- Step 1: Write the proportion equation
209,952,331.60 : 314,928,497.40 = 193,324,133.20 : x - Step 2: Convert to fraction form
209,952,331.60/314,928,497.40 = 193,324,133.20/x - Step 3: Cross multiply
209,952,331.60x = 314,928,497.40 × 193,324,133.20 - Step 4: Simplify right side
209,952,331.60x = 60,883,278,779,833,448 - Step 5: Solve for x
x = 60,883,278,779,833,448/209,952,331.60 - Step 6: Final answer
x = 289,986,199.80
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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.