Finding the Fourth Proportional to 11,220,508.80, 16,788,772.80 and 7,441,372.80
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Solution
The fourth proportional to 11,220,508.80, 16,788,772.80 and 7,441,372.80 is: 11,134,211.42
Step by Step Solution
- Step 1: Write the proportion equation
11,220,508.80 : 16,788,772.80 = 7,441,372.80 : x - Step 2: Convert to fraction form
11,220,508.80/16,788,772.80 = 7,441,372.80/x - Step 3: Cross multiply
11,220,508.80x = 16,788,772.80 × 7,441,372.80 - Step 4: Simplify right side
11,220,508.80x = 124,931,517,259,299.84 - Step 5: Solve for x
x = 124,931,517,259,299.84/11,220,508.80 - Step 6: Final answer
x = 11,134,211.42
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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.