Finding the Fourth Proportional to 13,471,010.79, 20,219,291.08 and 8,337,913.57
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Solution
The fourth proportional to 13,471,010.79, 20,219,291.08 and 8,337,913.57 is: 12,514,777.40
Step by Step Solution
- Step 1: Write the proportion equation
13,471,010.79 : 20,219,291.08 = 8,337,913.57 : x - Step 2: Convert to fraction form
13,471,010.79/20,219,291.08 = 8,337,913.57/x - Step 3: Cross multiply
13,471,010.79x = 20,219,291.08 × 8,337,913.57 - Step 4: Simplify right side
13,471,010.79x = 168,586,701,476,141.28 - Step 5: Solve for x
x = 168,586,701,476,141.28/13,471,010.79 - Step 6: Final answer
x = 12,514,777.40
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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.