Finding the Fourth Proportional to 10,366,285.80, 15,542,430.30 and 5,509,396.20
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Solution
The fourth proportional to 10,366,285.80, 15,542,430.30 and 5,509,396.20 is: 8,260,374.84
Step by Step Solution
- Step 1: Write the proportion equation
10,366,285.80 : 15,542,430.30 = 5,509,396.20 : x - Step 2: Convert to fraction form
10,366,285.80/15,542,430.30 = 5,509,396.20/x - Step 3: Cross multiply
10,366,285.80x = 15,542,430.30 × 5,509,396.20 - Step 4: Simplify right side
10,366,285.80x = 85,629,406,433,584.86 - Step 5: Solve for x
x = 85,629,406,433,584.86/10,366,285.80 - Step 6: Final answer
x = 8,260,374.84
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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.