Finding the Fourth Proportional to 8,685,389.22, 13,028,177.37 and 2,620,173.49
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Solution
The fourth proportional to 8,685,389.22, 13,028,177.37 and 2,620,173.49 is: 3,930,288.45
Step by Step Solution
- Step 1: Write the proportion equation
8,685,389.22 : 13,028,177.37 = 2,620,173.49 : x - Step 2: Convert to fraction form
8,685,389.22/13,028,177.37 = 2,620,173.49/x - Step 3: Cross multiply
8,685,389.22x = 13,028,177.37 × 2,620,173.49 - Step 4: Simplify right side
8,685,389.22x = 34,136,084,902,751.03 - Step 5: Solve for x
x = 34,136,084,902,751.03/8,685,389.22 - Step 6: Final answer
x = 3,930,288.45
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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.