Finding the Fourth Proportional to 12,828,167, 17,703,155.58 and 7,321,431.68
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Solution
The fourth proportional to 12,828,167, 17,703,155.58 and 7,321,431.68 is: 10,103,738.45
Step by Step Solution
- Step 1: Write the proportion equation
12,828,167 : 17,703,155.58 = 7,321,431.68 : x - Step 2: Convert to fraction form
12,828,167/17,703,155.58 = 7,321,431.68/x - Step 3: Cross multiply
12,828,167x = 17,703,155.58 × 7,321,431.68 - Step 4: Simplify right side
12,828,167x = 129,612,444,099,380.75 - Step 5: Solve for x
x = 129,612,444,099,380.75/12,828,167 - Step 6: Final answer
x = 10,103,738.45
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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.