Finding the Fourth Proportional to 13,337,044.20, 18,405,139.67 and 7,225,472.70
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Solution
The fourth proportional to 13,337,044.20, 18,405,139.67 and 7,225,472.70 is: 9,971,162.44
Step by Step Solution
- Step 1: Write the proportion equation
13,337,044.20 : 18,405,139.67 = 7,225,472.70 : x - Step 2: Convert to fraction form
13,337,044.20/18,405,139.67 = 7,225,472.70/x - Step 3: Cross multiply
13,337,044.20x = 18,405,139.67 × 7,225,472.70 - Step 4: Simplify right side
13,337,044.20x = 132,985,834,225,272.03 - Step 5: Solve for x
x = 132,985,834,225,272.03/13,337,044.20 - Step 6: Final answer
x = 9,971,162.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.