Finding the Fourth Proportional to 6,221,432.24, 8,585,139.48 and 3,430,431.44
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Solution
The fourth proportional to 6,221,432.24, 8,585,139.48 and 3,430,431.44 is: 4,733,754.42
Step by Step Solution
- Step 1: Write the proportion equation
6,221,432.24 : 8,585,139.48 = 3,430,431.44 : x - Step 2: Convert to fraction form
6,221,432.24/8,585,139.48 = 3,430,431.44/x - Step 3: Cross multiply
6,221,432.24x = 8,585,139.48 × 3,430,431.44 - Step 4: Simplify right side
6,221,432.24x = 29,450,732,388,977.25 - Step 5: Solve for x
x = 29,450,732,388,977.25/6,221,432.24 - Step 6: Final answer
x = 4,733,754.42
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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.