Finding the Fourth Proportional to 212,744,691.54, 318,462,525.18 and 138,809,270.70
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Solution
The fourth proportional to 212,744,691.54, 318,462,525.18 and 138,809,270.70 is: 207,786,857.31
Step by Step Solution
- Step 1: Write the proportion equation
212,744,691.54 : 318,462,525.18 = 138,809,270.70 : x - Step 2: Convert to fraction form
212,744,691.54/318,462,525.18 = 138,809,270.70/x - Step 3: Cross multiply
212,744,691.54x = 318,462,525.18 × 138,809,270.70 - Step 4: Simplify right side
212,744,691.54x = 44,205,550,865,516,184 - Step 5: Solve for x
x = 44,205,550,865,516,184/212,744,691.54 - Step 6: Final answer
x = 207,786,857.31
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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.