Finding the Fourth Proportional to 8,930,576.91, 13,378,962.58 and 5,276,378.75
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Solution
The fourth proportional to 8,930,576.91, 13,378,962.58 and 5,276,378.75 is: 7,904,581.59
Step by Step Solution
- Step 1: Write the proportion equation
8,930,576.91 : 13,378,962.58 = 5,276,378.75 : x - Step 2: Convert to fraction form
8,930,576.91/13,378,962.58 = 5,276,378.75/x - Step 3: Cross multiply
8,930,576.91x = 13,378,962.58 × 5,276,378.75 - Step 4: Simplify right side
8,930,576.91x = 70,592,473,787,262.36 - Step 5: Solve for x
x = 70,592,473,787,262.36/8,930,576.91 - Step 6: Final answer
x = 7,904,581.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.