Finding the Fourth Proportional to 19,442,812.87, 26,831,849.21 and 11,182,861.96
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Solution
The fourth proportional to 19,442,812.87, 26,831,849.21 and 11,182,861.96 is: 15,432,790.92
Step by Step Solution
- Step 1: Write the proportion equation
19,442,812.87 : 26,831,849.21 = 11,182,861.96 : x - Step 2: Convert to fraction form
19,442,812.87/26,831,849.21 = 11,182,861.96/x - Step 3: Cross multiply
19,442,812.87x = 26,831,849.21 × 11,182,861.96 - Step 4: Simplify right side
19,442,812.87x = 300,056,865,846,965.06 - Step 5: Solve for x
x = 300,056,865,846,965.06/19,442,812.87 - Step 6: Final answer
x = 15,432,790.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.