Finding the Fourth Proportional to 6,421,129.74, 8,861,521.05 and 3,809,180.25
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Solution
The fourth proportional to 6,421,129.74, 8,861,521.05 and 3,809,180.25 is: 5,256,883.50
Step by Step Solution
- Step 1: Write the proportion equation
6,421,129.74 : 8,861,521.05 = 3,809,180.25 : x - Step 2: Convert to fraction form
6,421,129.74/8,861,521.05 = 3,809,180.25/x - Step 3: Cross multiply
6,421,129.74x = 8,861,521.05 × 3,809,180.25 - Step 4: Simplify right side
6,421,129.74x = 33,755,130,968,619.27 - Step 5: Solve for x
x = 33,755,130,968,619.27/6,421,129.74 - Step 6: Final answer
x = 5,256,883.50
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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.