Finding the Fourth Proportional to 7,468,076.40, 11,207,644.20 and 2,983,570.80
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Solution
The fourth proportional to 7,468,076.40, 11,207,644.20 and 2,983,570.80 is: 4,477,565.33
Step by Step Solution
- Step 1: Write the proportion equation
7,468,076.40 : 11,207,644.20 = 2,983,570.80 : x - Step 2: Convert to fraction form
7,468,076.40/11,207,644.20 = 2,983,570.80/x - Step 3: Cross multiply
7,468,076.40x = 11,207,644.20 × 2,983,570.80 - Step 4: Simplify right side
7,468,076.40x = 33,438,799,971,909.36 - Step 5: Solve for x
x = 33,438,799,971,909.36/7,468,076.40 - Step 6: Final answer
x = 4,477,565.33
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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.