Finding the Fourth Proportional to 15,512,725.62, 21,409,888.73 and 11,785,423.14
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Solution
The fourth proportional to 15,512,725.62, 21,409,888.73 and 11,785,423.14 is: 16,265,652.10
Step by Step Solution
- Step 1: Write the proportion equation
15,512,725.62 : 21,409,888.73 = 11,785,423.14 : x - Step 2: Convert to fraction form
15,512,725.62/21,409,888.73 = 11,785,423.14/x - Step 3: Cross multiply
15,512,725.62x = 21,409,888.73 × 11,785,423.14 - Step 4: Simplify right side
15,512,725.62x = 252,324,598,063,367.22 - Step 5: Solve for x
x = 252,324,598,063,367.22/15,512,725.62 - Step 6: Final answer
x = 16,265,652.10
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1.5x scale
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.