Finding the Fourth Proportional to 1,992,529,318.65, 2,986,201,530.03 and 810,732,539.76
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Solution
The fourth proportional to 1,992,529,318.65, 2,986,201,530.03 and 810,732,539.76 is: 1,215,043,978.53
Step by Step Solution
- Step 1: Write the proportion equation
1,992,529,318.65 : 2,986,201,530.03 = 810,732,539.76 : x - Step 2: Convert to fraction form
1,992,529,318.65/2,986,201,530.03 = 810,732,539.76/x - Step 3: Cross multiply
1,992,529,318.65x = 2,986,201,530.03 × 810,732,539.76 - Step 4: Simplify right side
1,992,529,318.65x = 2,421,010,750,676,420,096 - Step 5: Solve for x
x = 2,421,010,750,676,420,096/1,992,529,318.65 - Step 6: Final answer
x = 1,215,043,978.53
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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.