Finding the Fourth Proportional to 19,946,896.20, 29,845,694.70 and 13,228,432.20
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Solution
The fourth proportional to 19,946,896.20, 29,845,694.70 and 13,228,432.20 is: 19,793,141.99
Step by Step Solution
- Step 1: Write the proportion equation
19,946,896.20 : 29,845,694.70 = 13,228,432.20 : x - Step 2: Convert to fraction form
19,946,896.20/29,845,694.70 = 13,228,432.20/x - Step 3: Cross multiply
19,946,896.20x = 29,845,694.70 × 13,228,432.20 - Step 4: Simplify right side
19,946,896.20x = 394,811,748,800,849.31 - Step 5: Solve for x
x = 394,811,748,800,849.31/19,946,896.20 - Step 6: Final answer
x = 19,793,141.99
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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.