Finding the Fourth Proportional to 207,799,971.81, 311,748,465.37 and 60,250,618.05
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Solution
The fourth proportional to 207,799,971.81, 311,748,465.37 and 60,250,618.05 is: 90,389,991.64
Step by Step Solution
- Step 1: Write the proportion equation
207,799,971.81 : 311,748,465.37 = 60,250,618.05 : x - Step 2: Convert to fraction form
207,799,971.81/311,748,465.37 = 60,250,618.05/x - Step 3: Cross multiply
207,799,971.81x = 311,748,465.37 × 60,250,618.05 - Step 4: Simplify right side
207,799,971.81x = 18,783,037,713,474,508 - Step 5: Solve for x
x = 18,783,037,713,474,508/207,799,971.81 - Step 6: Final answer
x = 90,389,991.64
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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.