Finding the Fourth Proportional to 12,296,864.40, 18,445,296.60 and 3,777,187.20
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Solution
The fourth proportional to 12,296,864.40, 18,445,296.60 and 3,777,187.20 is: 5,665,780.80
Step by Step Solution
- Step 1: Write the proportion equation
12,296,864.40 : 18,445,296.60 = 3,777,187.20 : x - Step 2: Convert to fraction form
12,296,864.40/18,445,296.60 = 3,777,187.20/x - Step 3: Cross multiply
12,296,864.40x = 18,445,296.60 × 3,777,187.20 - Step 4: Simplify right side
12,296,864.40x = 69,671,338,217,723.53 - Step 5: Solve for x
x = 69,671,338,217,723.53/12,296,864.40 - Step 6: Final answer
x = 5,665,780.80
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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.