Finding the Fourth Proportional to 12,236,457.36, 18,338,151.80 and 4,659,289.68
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Solution
The fourth proportional to 12,236,457.36, 18,338,151.80 and 4,659,289.68 is: 6,982,638.76
Step by Step Solution
- Step 1: Write the proportion equation
12,236,457.36 : 18,338,151.80 = 4,659,289.68 : x - Step 2: Convert to fraction form
12,236,457.36/18,338,151.80 = 4,659,289.68/x - Step 3: Cross multiply
12,236,457.36x = 18,338,151.80 × 4,659,289.68 - Step 4: Simplify right side
12,236,457.36x = 85,442,761,432,013.42 - Step 5: Solve for x
x = 85,442,761,432,013.42/12,236,457.36 - Step 6: Final answer
x = 6,982,638.76
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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.