Finding the Fourth Proportional to 20,574,511.20, 30,855,466.08 and 14,225,562.72
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Solution
The fourth proportional to 20,574,511.20, 30,855,466.08 and 14,225,562.72 is: 21,333,987.66
Step by Step Solution
- Step 1: Write the proportion equation
20,574,511.20 : 30,855,466.08 = 14,225,562.72 : x - Step 2: Convert to fraction form
20,574,511.20/30,855,466.08 = 14,225,562.72/x - Step 3: Cross multiply
20,574,511.20x = 30,855,466.08 × 14,225,562.72 - Step 4: Simplify right side
20,574,511.20x = 438,936,367,975,872.56 - Step 5: Solve for x
x = 438,936,367,975,872.56/20,574,511.20 - Step 6: Final answer
x = 21,333,987.66
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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.