Finding the Fourth Proportional to 12,353,903.80, 18,530,855.70 and 3,378,455.80
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Solution
The fourth proportional to 12,353,903.80, 18,530,855.70 and 3,378,455.80 is: 5,067,683.70
Step by Step Solution
- Step 1: Write the proportion equation
12,353,903.80 : 18,530,855.70 = 3,378,455.80 : x - Step 2: Convert to fraction form
12,353,903.80/18,530,855.70 = 3,378,455.80/x - Step 3: Cross multiply
12,353,903.80x = 18,530,855.70 × 3,378,455.80 - Step 4: Simplify right side
12,353,903.80x = 62,605,676,918,628.05 - Step 5: Solve for x
x = 62,605,676,918,628.05/12,353,903.80 - Step 6: Final answer
x = 5,067,683.70
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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.