Finding the Fourth Proportional to 11,127,907.20, 16,691,860.80 and 8,258,125.80
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Solution
The fourth proportional to 11,127,907.20, 16,691,860.80 and 8,258,125.80 is: 12,387,188.70
Step by Step Solution
- Step 1: Write the proportion equation
11,127,907.20 : 16,691,860.80 = 8,258,125.80 : x - Step 2: Convert to fraction form
11,127,907.20/16,691,860.80 = 8,258,125.80/x - Step 3: Cross multiply
11,127,907.20x = 16,691,860.80 × 8,258,125.80 - Step 4: Simplify right side
11,127,907.20x = 137,843,486,322,488.64 - Step 5: Solve for x
x = 137,843,486,322,488.64/11,127,907.20 - Step 6: Final answer
x = 12,387,188.70
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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.