Finding the Fourth Proportional to 11,139,957.14, 15,372,911.81 and 6,177,597.68
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Solution
The fourth proportional to 11,139,957.14, 15,372,911.81 and 6,177,597.68 is: 8,524,957.79
Step by Step Solution
- Step 1: Write the proportion equation
11,139,957.14 : 15,372,911.81 = 6,177,597.68 : x - Step 2: Convert to fraction form
11,139,957.14/15,372,911.81 = 6,177,597.68/x - Step 3: Cross multiply
11,139,957.14x = 15,372,911.81 × 6,177,597.68 - Step 4: Simplify right side
11,139,957.14x = 94,967,664,386,176.88 - Step 5: Solve for x
x = 94,967,664,386,176.88/11,139,957.14 - Step 6: Final answer
x = 8,524,957.79
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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.