Finding the Fourth Proportional to 5,286,110.74, 7,294,247.79 and 2,931,249.28
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Solution
The fourth proportional to 5,286,110.74, 7,294,247.79 and 2,931,249.28 is: 4,044,799.60
Step by Step Solution
- Step 1: Write the proportion equation
5,286,110.74 : 7,294,247.79 = 2,931,249.28 : x - Step 2: Convert to fraction form
5,286,110.74/7,294,247.79 = 2,931,249.28/x - Step 3: Cross multiply
5,286,110.74x = 7,294,247.79 × 2,931,249.28 - Step 4: Simplify right side
5,286,110.74x = 21,381,258,582,579.09 - Step 5: Solve for x
x = 21,381,258,582,579.09/5,286,110.74 - Step 6: Final answer
x = 4,044,799.60
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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.