Finding the Fourth Proportional to 19,923,938.01, 27,485,640.38 and 11,658,930.21
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Solution
The fourth proportional to 19,923,938.01, 27,485,640.38 and 11,658,930.21 is: 16,083,826.54
Step by Step Solution
- Step 1: Write the proportion equation
19,923,938.01 : 27,485,640.38 = 11,658,930.21 : x - Step 2: Convert to fraction form
19,923,938.01/27,485,640.38 = 11,658,930.21/x - Step 3: Cross multiply
19,923,938.01x = 27,485,640.38 × 11,658,930.21 - Step 4: Simplify right side
19,923,938.01x = 320,453,162,996,725.25 - Step 5: Solve for x
x = 320,453,162,996,725.25/19,923,938.01 - Step 6: Final answer
x = 16,083,826.54
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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.