Finding the Fourth Proportional to 20,408,584.80, 28,163,844 and 11,241,227.28
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Solution
The fourth proportional to 20,408,584.80, 28,163,844 and 11,241,227.28 is: 15,512,891.98
Step by Step Solution
- Step 1: Write the proportion equation
20,408,584.80 : 28,163,844 = 11,241,227.28 : x - Step 2: Convert to fraction form
20,408,584.80/28,163,844 = 11,241,227.28/x - Step 3: Cross multiply
20,408,584.80x = 28,163,844 × 11,241,227.28 - Step 4: Simplify right side
20,408,584.80x = 316,596,171,482,464.31 - Step 5: Solve for x
x = 316,596,171,482,464.31/20,408,584.80 - Step 6: Final answer
x = 15,512,891.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.