Finding the Fourth Proportional to 11,315,900.78, 15,616,277.62 and 8,014,102.13
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Solution
The fourth proportional to 11,315,900.78, 15,616,277.62 and 8,014,102.13 is: 11,059,697.87
Step by Step Solution
- Step 1: Write the proportion equation
11,315,900.78 : 15,616,277.62 = 8,014,102.13 : x - Step 2: Convert to fraction form
11,315,900.78/15,616,277.62 = 8,014,102.13/x - Step 3: Cross multiply
11,315,900.78x = 15,616,277.62 × 8,014,102.13 - Step 4: Simplify right side
11,315,900.78x = 125,150,443,659,031.94 - Step 5: Solve for x
x = 125,150,443,659,031.94/11,315,900.78 - Step 6: Final answer
x = 11,059,697.87
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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.