Finding the Fourth Proportional to 5,286,112.74, 7,294,250.52 and 2,931,251.28
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Solution
The fourth proportional to 5,286,112.74, 7,294,250.52 and 2,931,251.28 is: 4,044,802.34
Step by Step Solution
- Step 1: Write the proportion equation
5,286,112.74 : 7,294,250.52 = 2,931,251.28 : x - Step 2: Convert to fraction form
5,286,112.74/7,294,250.52 = 2,931,251.28/x - Step 3: Cross multiply
5,286,112.74x = 7,294,250.52 × 2,931,251.28 - Step 4: Simplify right side
5,286,112.74x = 21,381,281,173,390.66 - Step 5: Solve for x
x = 21,381,281,173,390.66/5,286,112.74 - Step 6: Final answer
x = 4,044,802.34
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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.