Finding the Fourth Proportional to 14,995,849.13, 20,694,266.75 and 8,120,331.19
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Solution
The fourth proportional to 14,995,849.13, 20,694,266.75 and 8,120,331.19 is: 11,206,054.31
Step by Step Solution
- Step 1: Write the proportion equation
14,995,849.13 : 20,694,266.75 = 8,120,331.19 : x - Step 2: Convert to fraction form
14,995,849.13/20,694,266.75 = 8,120,331.19/x - Step 3: Cross multiply
14,995,849.13x = 20,694,266.75 × 8,120,331.19 - Step 4: Simplify right side
14,995,849.13x = 168,044,299,692,469.25 - Step 5: Solve for x
x = 168,044,299,692,469.25/14,995,849.13 - Step 6: Final answer
x = 11,206,054.31
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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.