Finding the Fourth Proportional to 12,801,077.09, 19,201,635.11 and 5,228,042.84
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Solution
The fourth proportional to 12,801,077.09, 19,201,635.11 and 5,228,042.84 is: 7,842,072.21
Step by Step Solution
- Step 1: Write the proportion equation
12,801,077.09 : 19,201,635.11 = 5,228,042.84 : x - Step 2: Convert to fraction form
12,801,077.09/19,201,635.11 = 5,228,042.84/x - Step 3: Cross multiply
12,801,077.09x = 19,201,635.11 × 5,228,042.84 - Step 4: Simplify right side
12,801,077.09x = 100,386,970,942,196.19 - Step 5: Solve for x
x = 100,386,970,942,196.19/12,801,077.09 - Step 6: Final answer
x = 7,842,072.21
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.