Finding the Fourth Proportional to 212,289,173.70, 318,418,402.95 and 66,764,363.46
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Solution
The fourth proportional to 212,289,173.70, 318,418,402.95 and 66,764,363.46 is: 100,141,715.27
Step by Step Solution
- Step 1: Write the proportion equation
212,289,173.70 : 318,418,402.95 = 66,764,363.46 : x - Step 2: Convert to fraction form
212,289,173.70/318,418,402.95 = 66,764,363.46/x - Step 3: Cross multiply
212,289,173.70x = 318,418,402.95 × 66,764,363.46 - Step 4: Simplify right side
212,289,173.70x = 21,259,001,986,906,536 - Step 5: Solve for x
x = 21,259,001,986,906,536/212,289,173.70 - Step 6: Final answer
x = 100,141,715.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.