Finding the Fourth Proportional to 11,360,986.20, 15,678,218.49 and 6,204,347.60
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Solution
The fourth proportional to 11,360,986.20, 15,678,218.49 and 6,204,347.60 is: 8,562,031.11
Step by Step Solution
- Step 1: Write the proportion equation
11,360,986.20 : 15,678,218.49 = 6,204,347.60 : x - Step 2: Convert to fraction form
11,360,986.20/15,678,218.49 = 6,204,347.60/x - Step 3: Cross multiply
11,360,986.20x = 15,678,218.49 × 6,204,347.60 - Step 4: Simplify right side
11,360,986.20x = 97,273,117,260,707.12 - Step 5: Solve for x
x = 97,273,117,260,707.12/11,360,986.20 - Step 6: Final answer
x = 8,562,031.11
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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.