Finding the Fourth Proportional to 11,178,051.30, 16,767,076.95 and 7,930,793.70
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Solution
The fourth proportional to 11,178,051.30, 16,767,076.95 and 7,930,793.70 is: 11,896,190.55
Step by Step Solution
- Step 1: Write the proportion equation
11,178,051.30 : 16,767,076.95 = 7,930,793.70 : x - Step 2: Convert to fraction form
11,178,051.30/16,767,076.95 = 7,930,793.70/x - Step 3: Cross multiply
11,178,051.30x = 16,767,076.95 × 7,930,793.70 - Step 4: Simplify right side
11,178,051.30x = 132,976,228,242,475.22 - Step 5: Solve for x
x = 132,976,228,242,475.22/11,178,051.30 - Step 6: Final answer
x = 11,896,190.55
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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.