Finding the Fourth Proportional to 11,287,391.31, 16,931,730.51 and 3,199,731.26
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Solution
The fourth proportional to 11,287,391.31, 16,931,730.51 and 3,199,731.26 is: 4,799,779.31
Step by Step Solution
- Step 1: Write the proportion equation
11,287,391.31 : 16,931,730.51 = 3,199,731.26 : x - Step 2: Convert to fraction form
11,287,391.31/16,931,730.51 = 3,199,731.26/x - Step 3: Cross multiply
11,287,391.31x = 16,931,730.51 × 3,199,731.26 - Step 4: Simplify right side
11,287,391.31x = 54,176,987,314,084.09 - Step 5: Solve for x
x = 54,176,987,314,084.09/11,287,391.31 - Step 6: Final answer
x = 4,799,779.31
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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.