Finding the Fourth Proportional to 7,720,360.25, 11,580,540.74 and 5,289,116.09
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Solution
The fourth proportional to 7,720,360.25, 11,580,540.74 and 5,289,116.09 is: 7,933,674.38
Step by Step Solution
- Step 1: Write the proportion equation
7,720,360.25 : 11,580,540.74 = 5,289,116.09 : x - Step 2: Convert to fraction form
7,720,360.25/11,580,540.74 = 5,289,116.09/x - Step 3: Cross multiply
7,720,360.25x = 11,580,540.74 × 5,289,116.09 - Step 4: Simplify right side
7,720,360.25x = 61,250,824,332,388.92 - Step 5: Solve for x
x = 61,250,824,332,388.92/7,720,360.25 - Step 6: Final answer
x = 7,933,674.38
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Similar ratio
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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.