Finding the Fourth Proportional to 11,747,416.34, 17,621,973.78 and 4,917,120.09
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Solution
The fourth proportional to 11,747,416.34, 17,621,973.78 and 4,917,120.09 is: 7,376,035.62
Step by Step Solution
- Step 1: Write the proportion equation
11,747,416.34 : 17,621,973.78 = 4,917,120.09 : x - Step 2: Convert to fraction form
11,747,416.34/17,621,973.78 = 4,917,120.09/x - Step 3: Cross multiply
11,747,416.34x = 17,621,973.78 × 4,917,120.09 - Step 4: Simplify right side
11,747,416.34x = 86,649,361,299,091.25 - Step 5: Solve for x
x = 86,649,361,299,091.25/11,747,416.34 - Step 6: Final answer
x = 7,376,035.62
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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.