Finding the Fourth Proportional to 8,201,271.90, 12,301,907.85 and 8,081,697.68
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Solution
The fourth proportional to 8,201,271.90, 12,301,907.85 and 8,081,697.68 is: 12,122,546.51
Step by Step Solution
- Step 1: Write the proportion equation
8,201,271.90 : 12,301,907.85 = 8,081,697.68 : x - Step 2: Convert to fraction form
8,201,271.90/12,301,907.85 = 8,081,697.68/x - Step 3: Cross multiply
8,201,271.90x = 12,301,907.85 × 8,081,697.68 - Step 4: Simplify right side
8,201,271.90x = 99,420,300,069,409.25 - Step 5: Solve for x
x = 99,420,300,069,409.25/8,201,271.90 - Step 6: Final answer
x = 12,122,546.51
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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.