Finding the Fourth Proportional to 19,861,974.50, 29,793,520.80 and 5,485,042.35
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Solution
The fourth proportional to 19,861,974.50, 29,793,520.80 and 5,485,042.35 is: 8,227,717.91
Step by Step Solution
- Step 1: Write the proportion equation
19,861,974.50 : 29,793,520.80 = 5,485,042.35 : x - Step 2: Convert to fraction form
19,861,974.50/29,793,520.80 = 5,485,042.35/x - Step 3: Cross multiply
19,861,974.50x = 29,793,520.80 × 5,485,042.35 - Step 4: Simplify right side
19,861,974.50x = 163,418,723,343,605.88 - Step 5: Solve for x
x = 163,418,723,343,605.88/19,861,974.50 - Step 6: Final answer
x = 8,227,717.91
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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.