Finding the Fourth Proportional to 212,744,717.76, 318,462,564.12 and 138,809,296.57
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Solution
The fourth proportional to 212,744,717.76, 318,462,564.12 and 138,809,296.57 is: 207,786,895.84
Step by Step Solution
- Step 1: Write the proportion equation
212,744,717.76 : 318,462,564.12 = 138,809,296.57 : x - Step 2: Convert to fraction form
212,744,717.76/318,462,564.12 = 138,809,296.57/x - Step 3: Cross multiply
212,744,717.76x = 318,462,564.12 × 138,809,296.57 - Step 4: Simplify right side
212,744,717.76x = 44,205,564,509,375,720 - Step 5: Solve for x
x = 44,205,564,509,375,720/212,744,717.76 - Step 6: Final answer
x = 207,786,895.84
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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.