Finding the Fourth Proportional to 5,920,128.84, 8,169,761.72 and 3,203,874.84
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Solution
The fourth proportional to 5,920,128.84, 8,169,761.72 and 3,203,874.84 is: 4,421,338.58
Step by Step Solution
- Step 1: Write the proportion equation
5,920,128.84 : 8,169,761.72 = 3,203,874.84 : x - Step 2: Convert to fraction form
5,920,128.84/8,169,761.72 = 3,203,874.84/x - Step 3: Cross multiply
5,920,128.84x = 8,169,761.72 × 3,203,874.84 - Step 4: Simplify right side
5,920,128.84x = 26,174,894,023,503.12 - Step 5: Solve for x
x = 26,174,894,023,503.12/5,920,128.84 - Step 6: Final answer
x = 4,421,338.58
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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.