Finding the Fourth Proportional to 11,245,780.80, 16,868,671.20 and 6,994,252.80
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Solution
The fourth proportional to 11,245,780.80, 16,868,671.20 and 6,994,252.80 is: 10,491,379.20
Step by Step Solution
- Step 1: Write the proportion equation
11,245,780.80 : 16,868,671.20 = 6,994,252.80 : x - Step 2: Convert to fraction form
11,245,780.80/16,868,671.20 = 6,994,252.80/x - Step 3: Cross multiply
11,245,780.80x = 16,868,671.20 × 6,994,252.80 - Step 4: Simplify right side
11,245,780.80x = 117,983,750,772,879.36 - Step 5: Solve for x
x = 117,983,750,772,879.36/11,245,780.80 - Step 6: Final answer
x = 10,491,379.20
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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.