Finding the Fourth Proportional to 7,476,010.40, 11,214,015.60 and 6,147,407.90
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Solution
The fourth proportional to 7,476,010.40, 11,214,015.60 and 6,147,407.90 is: 9,221,111.85
Step by Step Solution
- Step 1: Write the proportion equation
7,476,010.40 : 11,214,015.60 = 6,147,407.90 : x - Step 2: Convert to fraction form
7,476,010.40/11,214,015.60 = 6,147,407.90/x - Step 3: Cross multiply
7,476,010.40x = 11,214,015.60 × 6,147,407.90 - Step 4: Simplify right side
7,476,010.40x = 68,937,128,090,163.24 - Step 5: Solve for x
x = 68,937,128,090,163.24/7,476,010.40 - Step 6: Final answer
x = 9,221,111.85
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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.