Finding the Fourth Proportional to 20,235,445.25, 27,934,033.92 and 12,903,134.09
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Solution
The fourth proportional to 20,235,445.25, 27,934,033.92 and 12,903,134.09 is: 17,812,140.08
Step by Step Solution
- Step 1: Write the proportion equation
20,235,445.25 : 27,934,033.92 = 12,903,134.09 : x - Step 2: Convert to fraction form
20,235,445.25/27,934,033.92 = 12,903,134.09/x - Step 3: Cross multiply
20,235,445.25x = 27,934,033.92 × 12,903,134.09 - Step 4: Simplify right side
20,235,445.25x = 360,436,585,414,203.44 - Step 5: Solve for x
x = 360,436,585,414,203.44/20,235,445.25 - Step 6: Final answer
x = 17,812,140.08
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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.