Finding the Fourth Proportional to 12,974,077.97, 17,904,601.35 and 7,173,234.21
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Solution
The fourth proportional to 12,974,077.97, 17,904,601.35 and 7,173,234.21 is: 9,899,269.86
Step by Step Solution
- Step 1: Write the proportion equation
12,974,077.97 : 17,904,601.35 = 7,173,234.21 : x - Step 2: Convert to fraction form
12,974,077.97/17,904,601.35 = 7,173,234.21/x - Step 3: Cross multiply
12,974,077.97x = 17,904,601.35 × 7,173,234.21 - Step 4: Simplify right side
12,974,077.97x = 128,433,898,920,232.19 - Step 5: Solve for x
x = 128,433,898,920,232.19/12,974,077.97 - Step 6: Final answer
x = 9,899,269.86
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1.5x scale
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.