Finding the Fourth Proportional to 7,381,135.20, 11,071,702.80 and 4,511,353.80
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Solution
The fourth proportional to 7,381,135.20, 11,071,702.80 and 4,511,353.80 is: 6,767,030.70
Step by Step Solution
- Step 1: Write the proportion equation
7,381,135.20 : 11,071,702.80 = 4,511,353.80 : x - Step 2: Convert to fraction form
7,381,135.20/11,071,702.80 = 4,511,353.80/x - Step 3: Cross multiply
7,381,135.20x = 11,071,702.80 × 4,511,353.80 - Step 4: Simplify right side
7,381,135.20x = 49,948,368,499,250.64 - Step 5: Solve for x
x = 49,948,368,499,250.64/7,381,135.20 - Step 6: Final answer
x = 6,767,030.70
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1.5x scale
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.